I met up with my friend Joel Y. to check out some custom loads he made in .357 magnum. Unfortunately the chronograph he borrowed was not consistent and had too many errors so we just ended up playing with a couple .357 magnum guns. A compensated Coonan, a 6″ barreled Coonan and his 3″ barreled S&W 60 Pro.


He and I didnt notice his eye pro was on his head. The fireball of the S&W 60 Pro is quite pronounced.



Here is the 6″ barrel Coonan vs a 2L soda bottle.



  • Martin M

    That is a lot of wasted propellant!

    • Pedenzo

      Wasted? Unused perhaps….but wasted? Nah…..

      • Martin M

        I stand corrected.

        • Pedenzo

          Meh…no need to stand corrected….I just like flashy boomy things……

  • Swarf

    Coonan, how I covet thee.

    • gunsandrockets

      how about a .460 Rowland?


      • Bierstadt54

        That too. The surprisingly versatile 1911, going from .45 ACP to .45 Super and all the way to .460 Rowland.

  • Giolli Joker

    Thumbs up for the “Dugan Ashley” look of the shooter.

  • ??

    Anyone have chrono data, for what velocities these guns actually make?? The Coonan that is .

    • I’ve seen a forum thread of a guy shooting 125gr Buffalo Bore getting 1800fps from his Coonan 6″.

      • ??

        Got a link??? That’s interesting.

    • Nicholas C

      My friend is trying to develop a load that will get 1900 fps.

      • 22winmag

        Tell the fool to just go with Liberty .357 ammo, which already does so in an elegant and effective manner.

  • Mike

    Just curious. What powder was used to give that flash. H110 maybe?

  • Jim Drickamer

    A friend of mine developed a .357 handload that I would not recommend. It was 22 grains of 2400 powder behind an 80 grain, full metal jacket bullet intended for a .380, and a magnum primer. He said that his chronograph showed he was getting a muzzle velocity of 4,000 fps, but allowed that the muzzle flare (not just a flash) might have been effecting the readings. He wanted to use this as a self-defense load. He figured the bullet would penetrate completely through a human torso but thought pain from the burns caused by the flare would be enough to stop any attacker and would provide an easy means of identification later on. Please do not try this load.

  • Oldtrader3

    Remind me to leave the range when you guys show up!!!!!

  • Marcus D.

    I have a SAA with a 7.5″ barrel in .38/.357. The muzzle flash even from that length is pretty impressive (to say nothing of the flare from the cylinder gap). I’ve never shot it in the dark, though…hmm, wouldn’t that be fun!

  • 22winmag

    When you are done toying around, get some Liberty ammo and enjoy a refined, reliable 1,700 to 2,200fps out of your .357 without the freakish flash. Hell, I get a consistent 2,400fps out of my 10mm Witness and 2,600fps out of my .40S&W Sub 2000 with Liberty ammo.

    • El Duderino

      I get 5,000fps with styrofoam bullets. Hydrostatic shock yo!

      Seriously though, LuckyGunner’s tests of the Liberty ammo weren’t all that impressive. Sure, followup shots are easier due to the low recoil but penetration and expansion were below average.

    • ??

      I get 1600fps with a 155gr in .45 Super brass and Autocomp powder (low flash). And shoot the gun is USPSA open class. But tone it down to 1300 . Just sayin :] https://uploads.disquscdn.com/images/f9abde61ee4e9392c14011b3c84efb5cacacb4b46b3105d313438237aaa9e34e.jpg

  • El Duderino

    80gr @ 4,000fps? Sounds like a .30-378 Weatherby further necked down to .243. 🙂

  • Swarf

    That is not what my comment said.

  • uisconfruzed

    I’d like to know what powder/load in 44 mag for a dramatic fireball.

  • ??