.50 Beowulf ARX Coming From PolyCase and Alexander Arms

The PolyCase Ammunition ARX first came out in 2014, and saying they’re unique is a bit of an understatement. The ARX bullet is made from a combination of copper and a special polymer, injection-molded, and designed both to create substantial wound cavities in soft tissue and also to break apart on impact with solid targets in order to reduce risk of over-penetration. Despite its having been designed to shatter upon contact with solid objects, the ARX is able to penetrate heavy clothing, still functioning as an effective defense round. In ballistic gel tests the ARX bullet penetrates an average of 12″ to 14″.

Now, PolyCase Ammunition is teaming up with Alexander Arms to produce the ARX bullet in a .50 Beowulf cartridge. Paul Lemke, PolyCase’s founder and CEO, says the company is “thrilled to be working with Alexander Arms to offer the ARX projectile in the .50 Beowulf caliber.” Lemke describes .50 Beowulf as the “ultimate” big-bore rifle round, adding that combining “the massive energy of the .50 Beowulf with the patent-pending stopping power of the ARX” gives gun owners “a defensive and hunting rifle cartridge that is second to none.”

Alexander Arms founder Bill Alexander agrees, saying he believes the new round featuring the ARX bullet will become one of the most effective of its size and type on the market. The company is responsible for the original creation of the .50 Beowulf round back in 2003, and a full line of products made specifically for the round is available on their website at http://www.alexanderarms.com/products/50-beowulf.

The new .50 Beowulf ARX is available on Alexander Arms’ site at http://www.shopalexanderarms.com/50_Beowulf-Ammunition.html, MSRP on their website is listed at $33.58 for 20 rounds. Visit PolyCase Ammunition’s site as well at http://www.polycaseammo.com/.

TFB Staffer

TFB Staff, bringing you the latest gun news from around the world for a decade.


  • David

    Oh good, a large caliber failure. I’ll pass.

    • TheSmellofNapalm

      You know, just stating something that agressive without anything to back it up is pretty childish.

      • David

        If you were not so childish you would do your own research and you would have found catastrophic failures of poly cased ammo.

        • TheSmellofNapalm

          So just to be clear, you’re calling me childish for not joining you and your army of armchair generals in your incessant need to put down every single new article on this blog. I’m sick of the negativity here. Every new tech had catastrophic failures including the M16, good thing we didn’t continue developing that one right?

          • David

            Feel free not to come back. I won’t miss you

        • CrankyFool

          The name of the company is potentially a little confusing — while the company is called Polycase, the innovation here is not in the case (they use standard brass cases), but in the bullet, which is a mixture of polymer and metal.

          That’s quite different from, say, PCPs offerings, which involve a hybrid polymer/metal case, and which have shown a tendency to make for a very exciting (in all the bad ways) range day.

          • David

            Thx for the clarification

          • TheSmellofNapalm

            What was that about doing research before posting?

          • El Duderino


  • Cal S.

    I see it, I like it, but I’m going to wait and see what kind of long range momentum these things have…

  • Vitor Roma

    The 9mm did quite well with shootingthebull.

  • Paladin

    Wasn’t the .50 Beo originally designed to shoot through the engine blocks of cars? And now they’re making it with a projectile designed to break up on hard surfaces.

    Did I miss something?

    • iksnilol

      Eh, things can do more than one thing.

      • maodeedee

        The original heavy bullet load will do anything you want it to do, either go through an engine block or kill a soft target good and dead, maybe even too dead. (overkill) Worried about over-penetration in close quarters? Then use your handgun.

        It just won’t light up as impressive numbers on the chronagraph or make a really cool wound channel in ballistic gel which is the only thing it’s good for.

    • JSmath

      That should really only serve to highlight the idea that .50 Beowulf can in fact be pretty damned flexible, Paladin.

      It goes without saying that in having similar ballistics to 45-70, .50 Beo could be used to take down quite a bit of game. And the kind of person with the money lying around to buy a .50 Beo upper would also be inclined to buy ammo to do so.

      If we gotta get all ‘tactical or not’ justifications, it’s easier to swap a mag than to swap an upper. One or two mags for engine blocks, the rest for softer targets…

  • noob

    that permanent wound cavity in the gel looks bigger than my whole head.

    do fluted bullets like the ARX and the lehigh defense Xtreme Penetrator work in smaller diameter projectiles? I have wondered why a fluted bullet that uses fluid jets to do the wound channel have not appeared in high velocity 5.56mm.

    • Vitor Roma

      The ARX may work, but the Xtreme Penetrator wont. The XP isnt really fluted, it is more like a flat point with cuts.

  • RA

    Kind of on the fence with this polycase stuff. It is getting a lot of attention. To the firearms community it seems to be the best thing since sliced bread. I could be wrong maybe it is great stuff. Gel alone does not tell the whole story. There is hard stuff in the meat bags that these bullets are intended for. (BONE) If it shatters that easily due to hitting a rib or shoulder what good is a nice wound channel without the penetration to the vitals.

    I feel it would be fine for self dense application (maybe) but for the type of things the Beowolf would be suited for I am not so sure. If hunting and you hit the shoulder it would fragment and you have to track a wounded animal. I would like to see a mock up of an animal with bone in the gel.

  • maodeedee

    Light-for caliber bullets are not where it’s at. Light bullets which allow high velocities trade mass for speed and it’s always a losing proposition. A 22-250 with a 55 grain bullet going very fast compared to a 45-70 with a heavy bullet going very slow is a good example. the 22-250 produces more foot-pounds of energy on paper but no one in their right mind would chose the 22-250 over the 45-70 to hunt dangerous game like grizzly bears. Light for caliber bullets rack up the impressive numbers on the Chrony and do spectacular things in blocks of Jello but those are not real-world applications.

    That said, the ARX fluted design of their fmj’s is a good one. But they should make it using a lead core and a copper jacket so that the .50 Beowulf preforms more like a 45-70 and less like a 22-250. Same thing with all their other offerings, 9mm should have a 124 grain bullet, 45 ACP at least a 200, and with 40 S&W 165 grains is probably the minimum optimum weight.

    • iksnilol

      Um, standard 45/70 loads have about 1500 joules of energy more than the .22-250 loads.

      So it is kinda a bad comparison.

  • iksnilol

    What does polymer cased ammo have to do with ammo that uses polymer in its bullet?