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Thread: .32 caliber gas checks

  1. #1
    Boolit Master
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    Thumbs up .32 caliber gas checks

    How about a .32 caliber gas check for the .32 H&R Magnum/.327 Fed. Mag.? If you could arrange to have a 1-grain gas check on a soft 134-grain LSWCHP and load it into a .327 Fed. Mag. It would be a perfect hunting load for those that have converted their 6 1/2" barreled Ruger single-Six revolvers to shoot the longer Fed. Mag. cartridge.

    You could make a LOT of our shooting partners VERY happy!

    Scott

  2. #2
    Boolit Master
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    gunfan

    Sorry gunfan, a 32 caliber gas check is for .321 - .323 bullets, it won't work with gas checked bullets in the .327 Mag.

    .30 cal. .308 gas check shank size .284
    . 32 cal. .323 gas check shank size .301

    A .30 cal. gas check fits .30 cal. rifle bullets and the .327 Mag. g/c bullets also ( and 32/20 gas checked design bullets ) . The .327 mag. does not fire a .327" dia. bullet , it fires a .312 " bullet, hence it will take a standard .30 cal. gas check.

    Ben

    Based on the .32 H&R Magnum, stretched and loaded to a higher pressure of 45,000 psi (note that standard pressure 44 magnum is 36,000psi), the .327 (actual bullet diameter .312 in, or 7.92 mm) achieves velocities up to 1,400 ft/s (430 m/s) with 100-grain (6.5 g) bullets (420 m/s and 6.5 g), and up to 1,300 ft/s (400 m/s) with 115-grain (7.5 g) bullets (390 m/s and 7.5 g), from the 3 1/16" (78 mm) barreled Ruger SP-101 revolver.
    Last edited by Ben; 01-26-2012 at 11:42 PM.

  3. #3
    Boolit Master
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    Quote Originally Posted by Ben View Post
    gunfan

    Sorry gunfan, a 32 caliber gas check is for .321 - .323 bullets, it won't work with gas checked bullets in the .327 Mag.

    A .30 cal. gas check fits. .30 cal. rifle bullets and the .327 Mag. also ( and 32/20 gas checked design bullets ) . The .327 mag. does not fire a .327" dia. bullet , it fires a .312 " bullet, hence it will take a standard .30 cal. gas check.

    Ben

    Based on the .32 H&R Magnum, stretched and loaded to a higher pressure of 45,000 psi (note that standard pressure 44 magnum is 36,000psi), the .327 (actual bullet diameter .312 in, or 7.92 mm) achieves velocities up to 1,400 ft/s (430 m/s) with 100-grain (6.5 g) bullets (420 m/s and 6.5 g), and up to 1,300 ft/s (400 m/s) with 115-grain (7.5 g) bullets (390 m/s and 7.5 g), from the 3 1/16" (78 mm) barreled Ruger SP-101 revolver.
    I know this, Ben. This is why I was suggesting a gas check bullet for a 134-grain (slightly underweight) LSWCHP bullets, so they can be driven at higher velocities in order to avoid leading the barrel.

    Thank you for the information!

    I understand that the .30 cal. gas check will yield the desired results (avoiding the dreaded barrel leading.) These would be invaluable for reducing friction in the .32 S&W Long when operation in the +P region, when employing 100% lead bullets. Would you recommend driving 3% tin, 3% antimony and 2% silver for use in the .32 S&W Long and eschewing the gas check, when driving it toward the higher velocities? I'm not seeking expansion by any means, just penetration.


    (BTW, I have been shooting for 50+ years, Ben. Daddy was Navy Rifle Team, UDT in WWII and Korea.) Besides, I'm an old sailor, myself.


    Scott
    Last edited by gunfan; 01-26-2012 at 11:58 PM.

  4. #4
    Boolit Master
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    Can you tell me how a 32 cal. gas check intended for a .301" dia gas check shank is going to fit on a .284 " gas check shank of a .30 cal. bullet ?

  5. #5
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    Talking

    It can't, of course.

    (I was being FUNNY, Ben.)

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check