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30 carbine blackhawk

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7 comments

  • nononsense
    74man,

    Continuation threads are perfectly acceptable and greatly appreciated by those who find they have more to add at a later date.

    Best.
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  • gunnut505
    It is truly unbelievable that a round with less powder than a 357 can be "louder" when fired through a 6+" barrel. My Blackhawk sports a 7.5" barrel, and is arguably " quieter" than a 6" barreled GP100, a 4" Rossi 971, a 6" Security Six, or a 3" 22 mag revolver.
    Either the 30 carbine is a wimpy caliber, capable of barely punching holes in paper, or the biggest, baddest hand cannon anywhere.
    Makes one wonder why M1 carbines aren't "banned" from indoor ranges everywhere.
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  • richarda
    May have to do with firing US GI ammo, loaded w/early ball powder (H110) intended for use in a rifle length barrel, out of a 7.5" handgun barrel. Lotta noise, flash.

    My observation after firing much GI carbine ammo is that it appears to be loaded to somewhat higher pressure than commercial soft point ammo, as well as loads found in reloading manuals.
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  • beantownshootah
    quote:Originally posted by gunnut505
    It is truly unbelievable that a round with less powder than a 357 can be "louder" when fired through a 6+" barrel. My Blackhawk sports a 7.5" barrel, and is arguably " quieter" than a 6" barreled GP100, a 4" Rossi 971, a 6" Security Six, or a 3" 22 mag revolver.
    Either the 30 carbine is a wimpy caliber, capable of barely punching holes in paper, or the biggest, baddest hand cannon anywhere.
    Makes one wonder why M1 carbines aren't "banned" from indoor ranges everywhere.


    There is muzzle "crack" from the bullet travelling faster than sound, but in general loudness is about how much gas is being vented out the barrel, and how quickly.

    That is, noise isn't JUST how much powder is being burned, but also the type of powder and volume of the barrel its being shot through. Worst offenders are fast burning powders and short barrels.

    Any rifle caliber through a handgun is going to be louder than the same round through a rifle because there is less space for the gas to decompress and cool. That includes 30 carbine, but also .22 magnum, and other rifle-caliber pistols. All those suckers tend to be really loud from handguns.

    I suspect the narrow bore of .30 carbine makes it seem louder too just because its a relatively higher pitch compared to 9mm+ caliber handgun rounds. Still, I doubt in absolute terms its really any louder than say, .44 magnum or any of the big bore magnums that people shoot all the time in indoor ranges, its just a different character of sound that's perceived as louder.
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  • Tflogger
    Frequency of sound matters,loading the same round with pistol bullets and a lighter charge changes everything.
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  • charliemeyer007
    A 6" S&W model 53 in 22 Jet with full tilt loads is way sharper of a crack than the 30 carbine. You can feel the shock wave on the entire front of your body. I wear ear plugs and muffs when I shoot it.
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  • Tflogger
    quote:Originally posted by charliemeyer007
    A 6" S&W model 53 in 22 Jet with full tilt loads is way sharper of a crack than the 30 carbine. You can feel the shock wave on the entire front of your body. I wear ear plugs and muffs when I shoot it.

    Sounds like a contender in 223 with a 10 inch barrel.
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