New caliber: .300 Uronen Precision

Uronen Precision (or Ase ja Osa) is a small Finnish family owned company.

I’ve been to see them a few times during the past years, and I’ve tested some of their rifles (AR-15s).

Their rifles are focused on match grade and competition rather than mass production. Each rifle is manufactured according to your specification.

They give an accuracy warranty to all .223 Remington rifles: rifle must meet or exceed 0.5 minute of angle accuracy on average at 100 meters, when high quality ammunition is used.

I’ve seen the old man himself go out to test a new rifle before delivery, so it’s a claim I’ve seen verified.

Picture below: Mr. Hannu Uronen is a very good competitive shooter, especially in handgun and rifle. He’s ranked Nr 3 in the World according to IPSC-Rating. Below he is shooting an Uronen Precision UR-15 .300 UP,  handloaded Sako brass, Sako bullet, Magtech primer and Hodgdon H110 powder.  Sight: Zeiss V8 1,1-8×30 ASV+ (1.5x on this stage) with Uronen Precision scope mount.


Anyway, the story behind the new caliber .300 Uronen Precision as told by Hannu below. (Unless you are fluent in his language you should not complain about his English):

“It all began by shooting Finnish Military Reservist Action shooting and rifle / pistol IPSC & USPSA.

.300 UP caliber creator Hannu Uronen found out, that he could shoot very relaxed and fast when using Open division pistol shooting major ammo. Or shooting military reservist action shooting matches, where only scoring is major for both rifle and pistol.

He was struggling to have the same performance with minor scoring in IPSC Rifle. .223 Remington caliber is used probably by 95% of competitors, it can only make minor power factor 150. Good rifle with good ammunition can be very accurate, recoil is very light, decent quality ammunition is cheap and so on, so there is no doubt that .223 is very easy choice.

The idea behind .300 UP started when Uronen Precision started to build rifles in caliber 300 AAC Blackout. Hannu did lots of testing with different barrel lengths, bullets, powders etc and got an idea of using major rifle for IPSC matches from testing. He did some comparing between .223 Rem and 300 BLK against the clock, and found out that even 300 BLK was usually little slower. However, he was able to get so many more points that hit factor became usually little higher with 300 BLK.

Hannu soon discovered, that even being ultimate all round cartridge for both supersonic and subsonic ammo, 300 BLK could be improved a lot for use with only supersonic ammunition. Long free bore, fast twist and short gas system needed for subsonic ammo, did not help with light supersonic bullets.

Shortly after this, Hannu got an idea to optimize 300 BLK for supersonic bullets only. First experiment was just to use slower twist rate, to reduce rotational speed of light bullets and even this improvement was noticeable. At this point, it was called “300 BLK Supersonic”.

However, there was much more to be done. Longer gas system to soften recoil, special “tight low friction rifling” with 12″ rifle twist and special chamber dimensions to accommodate modern plastic tipped bullets, as well as traditional match bullets. Also 300 BLK modest maximum pressure 3700 bar was raised to 4150 bar. This could be done, because .300 UP is only designed for AR-15 platform and bolt actions originally chambered for .223 Remington.

Even .300 UP uses 300 BLK brass, chamber and barrel dimensions are so different that there is no way .300 UP would pass 300 BLK CIP test. At this point, our caliber needed own name – that was the beginning of .300 UP

So to put it short: .300 UP is basically our version of 300-221; 221 Fireball case necked up to accommodate .308 caliber bullet. .300 UP is optimized for typical modern match bullets: Nosler Ballistic Tip, Sierra Matchking and Tipped Matchking, Hornady Match and SST, Sako OTM and similar.
Accuracy is on the same level with our .223 rifles, so 0.5 MOA 5 shot groups at 100 meters with match bullets are the norm. We have not been able to achieve the same with 300 BLK.

.300 UP also works very good with affordable bullets like Sako 120A and 143A (124gr FMJ). With these, accuracy of 1.0 MOA or better is the norm and hand loaded ammunition price (without case) is less than 0,30 euros per piece. So hand loaded .300 UP ammunition can be cheaper than affordable but decent quality .223 factory ammo like Topshot, Sellier & Bellot, Fiocchi or Geco.

Below – Left to right: .223 Rem, .300 UP with Sako 124gr 120A and last .300 UP with Sierra 155gr TMK


We have done all our testing with Sako brass because of the high quality but just like 300 BLK, you can make brass for .300 UP from .223 Remington brass.

.300 UP gives higher muzzle velocities compared to 300 AAC Blackout with same barrel length. This means, that .300 UP meets IPSC Rifle major power factor 320 with 155-160gr or heavier bullet (175gr or heavier for 300 BLK).
For lowered major power factor 280 120gr or heavier bullet can be used (130 gr for 300 BLK). Lowered power factor PF 280 basically means duplicating 7,62×39 ballistics.

Suitable powders for .300 UP major loads are (for example): Hodgdon Lilgun, Hodgdon H110, Winchester 296, Reload Swiss RS30 and Vihtavuori N110.

We still think that for many shooters, .223 Rem is the right way to go. It is very easy: rifles, ammunition and knowledge is widely spread everywhere.

Does this mean that we will reduce of making 300 BLK and/or .223/5.56 rifles ? Answer is absolutely NO! We believe, that .223 Rem / 5.56×45 will still be 90%+ of our production. Also for those who need to use subsonic ammunition from AR-15, 300 BLK is the way to go. We are especially proud of our Tactical Carbine 9.5″ 300 BLK

But for a sport shooter or a hunter, who is not afraid of hand loading his/her own ammo, is looking for something different, wants to have major scoring in IPSC rifle, .300 UP could be just the ticket giving that little extra advantage needed.

At this point, first internationally sanctioned rifle match (Mayday Rifle Level 3, Estonia) for .300 UP is over and the results look very promising: SAO winner Hannu Uronen and SAO 3rd Dagnis Maiberg used .300 UP (the 2 first .300 UP rifles made).”


Below: First ever made .300 UP lower receiver

2016-05-08 23.03.24

Below: Typical .300 UP 5 shot group at 150 meters shooting distance.

Sako brass, Magtech primer, H110 powder and Nosler 165gr Ballistic  Tip bullet.

2016-05-08 23.03.33


Some UR-15s with .300 Uronen Precision. Note the UP scope mount for the Zeiss V8.




The “Estonian Viking” on stage 7 in Estonia, also shooting .300 UP.


Pretty cool rifle stage, inside a car, from Mayday Rifle 2016 in Estonia. Hannu Uronen on stage 9, in this Facebook video.

Rifle used: Uronen Precision UR-15 .300 UP  Ammo: Handload: Sako brass, Sako bullet, Magtech primer and Hodgdon H110 powder.  Sight(s): Zeiss V8 1,1-8×30 ASV+ (8x on this stage) with Uronen Precision scope mount.

As there has not yet been a real “World Shoot” in IPSC or similar rifle shooting, we don’t know which nation that has the best shooter(s). But it’s clear that many Finnish shooters have a real high class and the European IPSC Rifle Championships had Finns in the win and top all of the time.




No, the .300 Uronen Precision caliber probably isn’t going to change the World, but considering the fact that the majority of competition rifle shooters go for “minor” calibers like .223 Remington it’s interesting to see major calibers being successful.

Was it the Indian or the bow that won the match? Probably both. But there are a lot of people who shoot “for fun” and enjoy the reloading bit just as much (I wish I did), so it may be an interesting option?

For those unaware, Ssgt. Daniel Horner won the 2011 Multigun Nationals with .300 BLK, so a similar concept has been tried.


Eric B

Ex-Arctic Ranger. Competitive practical shooter and hunter with an European focus. Always ready to increase my collection of modern semi-automatic firearms, optics and sound suppressors. Owning the night would be nice too.


  • Duray

    Sounds like the 30 Wilson Tactical might’ve met their needs, without coming up with a new cartridge designation . Of course this way, brass supply is simpler.

    • Austin

      Its probably a case of parallel developmen. It wouldn’t surprise me if there were a dozen wildcats solving this same issue.

      • BAC

        You have no idea how old the cartridge is, I take it…

      • BAC

        Hm. That should’ve gone to the post about developing 300BO for SF guys. Not sure why it shifted to Austin. Sorry about that sir.

  • Tierlieb


    1) For once, a new caliber for a specific purpose. Smart. Shooting major cheaply in IPSC rifle is a good thing. Increasing the precision is, too.

    2) The reason for its development shows a weakness of the 300 BLK “everything but the kitchensink” design. The points about the long leade due to the huge subsonic bullets and the tight twist are well made.

    3) For an “AK-Killer” setup, the 300 BLK Supersonic idea with the original chamber, but slower twist and longer gas system would probably interesting. Somewhat inverse to the change to 1:7″ twist with modern AR-15s that produces problems with 52gr bullets.

    • AirborneSoldier

      What short memories we have. 300 black was designed for sf troopers kick8ng in doors.

      • BAC

        You do realize the 300 Blackout has been around since the 80’s, yes? It’s been one of the most popular wildcats since mid-90’s. AAC was simply successful where SSK failed.

  • ostiariusalpha

    Hänen Englanti on perseestä! j/k

    Good to see Finnish craftsmanship at work on the AR-15 platform.

  • politicsbyothermeans

    “Unless you are fluent in his language you should not complain about his English”

    Why on earth is this necessary?

    • Jwedel1231

      Because some people are horrible.

      • politicsbyothermeans

        Sure, but I don’t recall seeing any of that sort of thing here. In fact, it seems like there are more than a few fairly popular gun enthusiasts with English as a second language. Anyway, back to guns.

  • DIR911911 .

    Finland . . . the reason Russians hate skiing

    • Anonymoose

      I thought it was because all their mountains are infested with wolves?

      • Marcus D.

        Usually Bears. With funny accents.

  • Jwedel1231

    I guess I never thought about barrel twists & chambers being made for subsonics negatively impacting the performance of supersonics enough to make a difference. Then again, when you guarantee 1/2 MoA on every gun EVERYTHING impacts performance.

    • Nick

      A lot of us that buy 300AAC never think about it because we’re having too much fun being quiet. I only got into the caliber for suppressed subsonic. If it wasn’t as quiet as it is, I’d have ditched it.

      At this point, I almost never shoot supersonics, but I can see the issue given the wide range of loads for the caliber. What other gun would have to handle 110 grn screamers as well as 220 grn subsonics?

  • Gorilla Biscuit

    Posting actual velocities of a cartridge are usually a fantastic idea. When writing about a cartridge and pressure modifications done to said cartridge. So Ill do it for you.
    First pressure has been bumped to
    -60,190psi from the
    -55,000psi (SAAMI MAP)
    -53663.96psi (CIP).

    Secondly the 160gr @ 320PF would need to be going a minimum of 2000FPS.
    175gr @ 1830fps

    For what ever this lowered 280PF is (regions of Finland, Estonia, Denmark, Russia and
    Bulgaria be given one year to evaluate.)

    The 130gr bullet would need to be going 2160fps minimum.

    So those are the theoretical velocities, from the article written about and enhanced 300 Blackout with no chronograph data given.

  • Evan

    I’d be a lot more impressed with this company if they put brass deflectors and forward assists on their uppers. There’s a reason slick side went out in the late 60s/early 70s.

    • Elijah Duray

      Why would a race gun need those features?

      • Evan

        Because it’s stupid not to have them.

        • Kyle

          It is a race gun though. It isn’t on a sling being beat the hell up, low crawling through the mud or carried through rivers and swamps or covered in grit and filth from a sandstorm. So it doesn’t really need though unless the shooter just wants them.

          • Evan

            First, I think race guns are gay. If you’re going to compete in shooting sports involving practical skills, they’re meaningless unless you use a practical gun. These race guns aren’t weapons any more than a football helmet is. I disapprove. That being said, if a rifle is designed for any practical use whatsoever, it’s idiotic not to put a brass deflector and forward assist on it.

          • Frig man

            ” race guns are gay”

            So race cars are stupid as well. Should just drive showroom stock around Indy or wherever.

            Stupid comment is stupid.

          • Evan

            Actually, I said exactly what I meant to say. Race guns ARE gay. If you shoot a competition with a rifle designed to be practical instead of some silly monstrosity designed for competition, it says a lot more about your shooting skills. A rifle should be a weapon. These race guns are more akin to a baseball glove.

          • Paladin

            And whats wrong with shooting being a sport? There’s more to shooting and firearms than real-world utility. Even though I myself lean towards the practical end of the spectrum I don’t begrudge the sport shooters for choosing to enjoy it their own way. It’s their own money they’re spending, and they can spend it on whatever makes them happy.

            You might as well complain about how soccer no longer accurately represents the martial training it was based on.

          • Evan

            Soccer wasn’t based on martial training; it was, in fact, banned in England at one point as it was distracting people from archery, which had its martial uses (Crecy, Poitiers, Agincourt, etc).

            The thing that I begrudge the three gun crowd is the (I hate this word) appropriation of military skill sets that are warped into something that utterly lacks any vestiges of the warrior spirit. I admit that I have a bias here. I learned to shoot in the Marine Corps, and I went to war with the Corps. If civilians want to try their hands at tactical shooting, I say go ahead. But tactical shooting reduced to that? It just gets my goat, so to speak.

          • Paladin

            Soccer absolutely was based on martial training, not for archers, but for footsoldiers. It was intended to help the peasants learn how to work in close battle, which is part of why early soccer games were often quite violent.

            Competitive shooting is not the same as going to war, and it’s not trying to be. Fact is, most people aren’t particularly interested in going to war, because war kinda sucks. Competitive shooters aren’t trying to be soldiers, they’re trying to be athletes. Why does that offend you so much, and why should they care that it does?

          • Evan

            I’ll admit that I don’t know much of the origins of soccer, though I do know that it was banned in England at some point as a distraction from archery. All I know about soccer is that when we played it in the Corps for PT occasionally, the rule for the white guys (like me) was “kick the ball at someone who speaks Spanish”.

            Yeah, war sucks. I don’t think anyone would argue that point. However, I would say that for a man, war is the ultimate pursuit – the thing that makes a man a man. Reducing war to a silly game, to the point where tactical skills won’t serve you and only the skills of the sport will; I don’t quite know how to put it, but I don’t like it. If three gun competitions maintained practical standards – armor and tactical gear, retention on the body of all weapons at all times, losing points for not retaining mags, no silly modifications, etc, I’d be all about it. The point is that three gun competitions are meant to demonstrate tactical skills. At this point, they do nothing of the sort. It seems to me like children playing “soldier”, every bit as realistic, except they have real guns.

          • Paladin

            Three gun is not meant to demonstrate tactical skills. It’s meant to demonstrate shooting skills. If it was meant to replicate real world military use the rules you suggest would already be in place, but it’s not, so they aren’t.

            Ask a three gun competitor whether they think they’re playing soldier, you won’t find many who will say yes. As I said, they’re athletes, not soldiers.

            I would argue that there are many other ways to be a man aside from war. In fact, I find the notion of war being the quintessence of manhood to be quite frankly puerile. War is not about proving your masculinity, and it is certainly not something to be glorified or aspired to. War is a last resort, and in the truest sense a deadly serious undertaking, one that should not be pursued without dire need.

          • Evan

            I will agree on this: war is a deadly serious undertaking. As a veteran myself, I have thought a lot about this, and I have a serious problem having any respect for American men of my approximate age who didn’t fight. I look to basically every civilization from Sparta to the old Norse to the Sioux to the Zulus. A man ought to be a warrior. You’re welcome to your own opinion on the subject, but that’s mine.

            I’m sure any three gun competitor would disagree. I would counter by asking what his skills are for, what the object of his sport was to begin with. And therein lies my problem, it’s an ostensibly martial sport that lacks any vestige of the warrior spirit.

          • Paladin

            Ask a football player what his skills are for. I wager that a football player and a 3-gun shooter would give similar answers. 3-gun shooters aren’t training to fight, they’re training to compete.

            Thankfully, 3-gun shooters are not obliged to justify their sport to you, what with it being a (moderately) free country and all.

          • 6.5x55Swedish

            What if I told you some people aren’t interested in the Zombie invasion but just want to be good at their sport.

          • Evan

            Anything with zombies on it is far gayer than three gun.

    • You don’t need a forward assist on a race gun because it’s faster to pull the charging handle to get a fresh round in, you don’t need a dust cover because it comes out of a bag and is used for a couple minutes at a time. #becauseracegun

      • Evan

        But that whole concept is ridiculous, and competing with a gun like that almost nullifies what you’re trying to prove by competing in the first place.

        • OK Timmy, you go hang out with your Timmy friends, I’ll be out shooting competitions, like this weekend, to improve my skills.

          • Evan

            Right, but you won’t be actually improving your skills. Ever heard “train like you fight”? That little axiom kinda goes out the window with gay race guns like this. You’ll be improving actual tactical skills the same way that modern fencing would be improving actual sword fighting skills. It’s so heavily modified that it becomes an entirely different skill set from what was originally intended.

          • Well, as I’m not heading out to the sandbox anytime soon, nor do I think Russian/North Korean paratroopers will be landing where I have to get my WOLVERINES on, the skills I learn and improve upon are the ones that are actually practical to me.

          • Evan

            Now, if three gun competitions had to be shot in armor and tactical gear, if all guns had to be kept on person at all times, if you lost points for not retaining mags, and if silly race modifications weren’t allowed, then they would be cool. The fact that none of the above is so is why I have zero interest in the sport.

          • Frig man

            You realize that the chances that you get in a sword fight are only slightly less then you being involved in a real world situation with your AR.

            People do not race cars to hone skills needed to get through rush hour faster.

          • Evan

            Of course I realize that. It’s an analogy. I have no interest in car racing of any type either.

          • Frig man

            Ok, horse races are run with horses that would never be hitched to a wagon or ridden for transportation.

            The point is that every sporting event known invariable evolves to use more and more specialized equipment. To the point where it becomes impractical outside its competitive environment.

          • Evan

            That’s true. But at the point where a sporting event that is supposed to demonstrate real world skills requires specialized sporting gear that would be useless for the real world, it becomes lame. Sword fighting was cool. Fencing isn’t.

            Something like baseball is still ok, because baseball equipment isn’t supposed to represent anything used for any other purpose. A three gun competition is supposed to test real world skills. When the gear used for it diverges from the real world gear, the competition becomes lame and meaningless.

          • Calimero

            Well the “gay guns” account for 10-15% at best of the performances of these guys.

            You can’t win high level matches (and the Nordic-Baltic field is highly competitive) if you’re a lousy shot even with a race gun.

            IPSC is a sport/game. Whether you want it or not the practical aspect was dropped long ago. It’s still a good context to work purely on your shooting skills (ie: the ability to hit where you want under less-than-ideal conditions).

            Tactical skills are very different (coms/teamwork, use of cover …) and don’t require that much actual shooting.

        • Austin

          The point of competitions like this is to push yourself to be better(in this case fast accurate shots, once you advance to a point where the gun is a limiting factor you get a gun that you can improve with.

          • Evan

            Fast accurate shots are a good thing, and can be done very well with a practical rifle.

          • Austin

            To a point, then you get into the competition and race guns to shave fractions of seconds off to advance to higher levels of competition.

          • Evan

            But at that point the competition isn’t proving anything worth proving.

          • jay

            Neither are you.

          • Paladin

            What’s the point of winning the superb owl? or the world series? or the Indy 500? The nature of the achievement IS the purpose.

          • Evan

            The Super Bowl and the World Series are the respective pinnacles of games that had no real world basis whatsoever. I like football (go Giants!) and I absolutely love baseball (Let’s go Mets!), but neither of those games were ever anything but games. Shooting competitions are supposed to represent practical skills. When they deviate from those practical roots into a sport that is barely recognizable to a man whose love affair with guns and shooting comes from the military, the competitions look like a grotesque caricature and not a legitimate sport. Three gun is to actual tactical shooting what Olympic fencing is to sword fighting – a sport based in martial skill that has specialized itself to the point where the skill set in entirely separate from what they were originally going for.

          • Paladin

            Football does have real world basis, it’s derived from European football, which in the middle ages was used to help train peasants to make them better footsoldiers. Modern football is far enough removed from its origins that few people are even aware of it, but it is one among many sports with martial origins.

            And who made you the arbiter of what is and is not a “legitimate sport”?

            an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment.

            Activity involving physical exertion and skill? Check.

            Individuals and/or teams competing? Check.

            Entertainment? as always in the eye of the beholder, but plenty of people find it plenty entertaining, so, Check.

            Seems plenty legitimate to me.

          • Evan

            As I said before, I don’t know the origins of soccer per se (though I would like to see a source on that). If what you say is true, and soccer was originally designed to train medieval infantrymen, well, I’m sure if I’d been a medieval infantryman I’d be disgusted by soccer. But I never carried a bill or a halberd, I carried an M16A4. And what three gun is compared to my training isn’t just apples and oranges, it’s apples and apple flavored jolly ranchers.

          • Paladin

            It’s commonly understood that the notion of sport itself began as training for hunting and war. The ancient Greeks played a game known as sphairomachia (literally ball battle) which may have been a precursor of modern football.

        • Lee Attiny

          Just curious, is skeet shooting ridiculous as well?

          • Evan

            Honestly, I have no idea. I’ve never shot skeet or trap or hunted birds. I don’t know much about shotgunning at all outside of tactical uses.

    • Goody

      I can tell this comment is well thought out because of all the 3 gun competitors that only have one rifle. Bright red anodising, skeletonised upper and tight tolerances are definitely what people are using for hunting & home defense.

    • AirborneSoldier

      Ive needed the forward assist on a number of occasions, which is why the Army trained it’s use.

      • Evan

        I learned the same from the Corps.

  • gunsandrockets

    Hmmm… by my calculations a 154 grain bullet from a 7.62x39mm would also make major power factor. And that is a load now available as a very cheap factory offering. Of course that load wouldn’t be as guilt edged in accuracy as the .300 UP, but for those of us with coarser skill sets and tinier bank accounts it’s interesting to contemplate…

    • Tierlieb

      Yes, that works and, depending on the country, some people actually do this. But if you were to use an AK, you’d not even make it into the middle of the competition field:
      The long-stroke piston is a noticeable recoil increaser, the mounting of a proper 1-6x scope is iffy, the mag changes are slow. Cheap steel-case ammo is sometimes not precise enough and once you start reloading, you’ll encounter bore-diameter issues (AKs seem to come with everything from .308 to .312).

      Trust me, I’ve tried it. Good combat rifle, horrible competition system.

      So you’d be looking at an AR-15 in 7.62×39. And that is where you start considering 300 BLK or 300 UP, too.

      • iksnilol

        Adjustable gas system.

        I always tell this to people: if you want a smoother autoloader, get an adjustable gas block.

        • Sledgecrowbar

          The AK is a soft shooter and gas adjustment probably isn’t going to help the long recoil action. I think what was missed is that op is suggesting an AR-platform running 7.62X39, which offers more options for tuning.

          • Tierlieb

            Calling the AK a soft shooter is… very polite. But everything is relative, so in comparison, the AR-15 would be a featherlight, super-soft, “I can’t believe it is even recoiling” shooter 😉

            Just shoot them honestly side by side and compare the split times.
            The AK is definitely good enough for me to pass VTAC’s half-and-half or the Bill drill par time, which I’d call “good enough for government work”, but it is harder. I’ve won military-style competitions with AK and vz58, but that’s because they don’t emphasise the qualities of the gun that much. IPSC, what .300 UP is made for? Nope.

            An adjustable gas block for an AK, as iksnilol implied, would be a good lesson to understand just how overgassed most AKs are to be on the safe side under adverse conditions.

            As for the AR-15 in 7.62×39: There is no price difference to a 300BLK or 300 UP. All you get is those little issues that have lead to there being only few 7.62×39 ARs and many 300 BLK ones (new bolt face; different feeding angle due to case geometry; expensive, untested mags…)

            Same with ammo: If you want precise 7.62×39 ammo, you will not save money (more expensive cases, depending on how special you make them even more expensive bullets). And reloaded ammo only works for an AR-15 based 7.62×39 gun, as the AK system kills cases (again for reliability purposes).

            There will always be fans of certain systems: Gunsandrockets pointed to the Mini-30 tactical, another fan gun. But fan guns don’t win shooting competitions. Personally, I think that a Mini-30 Tactical might even be the better 7.62×39 competition rifle (softer system, does not ding the cases, mags have been around for a while and are known to work), but I my experience with Ruger Minis is very limited.

          • Nick

            An AR in 7.62×39 would be bad for competition unless someone has finally remedied the feeding issues that caliber has in the AR.

            The problem arises from the straight magazine well. 7.62×39 is a tapered cartridge (probably to increase the liklihood of proper feeding in a dirty gun) and has trouble in the straight mag well. This is why AK mags start their curve immediately, to ensure smooth feeding.

      • gunsandrockets
      • AirborneSoldier

        The ak was desiged for soviet troops in mass formations as they condected their final assault on a nato position, not for accuracy.

  • Christian Hedegaard-Schou

    As someone who pretty much only loads and shoots .300BLK supersonic (125-150gr bullets, I do not live in a suppressor-friendly free state), I really like this idea and would love to work with an American manufacturer to get a barrel 🙂

  • AirborneSoldier

    If we gotta buy new barrels, itll never take off. Maybe withe the 3 gun guys, but that isnt enough to sustain this. Love the passion and creativity. Love the Finns except for their love of socialism. Great people.

  • Longrange

    300 UP and 300 Blackout have their uses. Good thing with 300 UP is that i can be made to score Major in IPSC and can also use 300 Blackout for training ammo. If Evan has trouble understanding why some people participate in any kind of sports yhen that is his problem. He does not need to participate if it makes him uneasy.

    If 3Gun was to simulate real life then I would destroy all the targets with close-in-air support or artillery support and not shoot a single rifle round. The stage would be over in a few seconds. That is how USMC Scout-Snipers make most of the kills nowadays. Shooting is reserved mostly for situations where artillery or CAS is not available.

  • Lyle

    Because the world didn’t have nearly enough 30 caliber rifle cartridges.

    Kidding aside; I wish them well. It’s a fascinating story too. They certainly have some craftsmanship going, judging by the groups.

  • mig1nc

    Yeah, my first thought was how does this compare to 7.62WT Wilson Tactical.

  • Richard Lutz

    Seems to me that the 7.62x37mm Musang round from the Government Arsenal in the Philippines is ideal in a short barrel AR. With the 145-gr M80 FMJ round loaded so the cannelure falls at the case mouth it is just short enough to fit into an AR magazine. Being 2mm longer than the .300 Blackout (7.62x35mm) you can fit more gunpowder into it for a bit better velocity (perhaps 100-fps).