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Thread: 450 Bushmaster with Buffalo Rifle

  1. 07-27-2021, 10:26 AM #1
    missionary5155
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    450 Bushmaster with Buffalo Rifle

    Good morning
    Bought a couple 8 pounders of Buff Rifle back awhile as it was cheap and is like the old 5744 was.
    So started running it in the new to us 450 Bush. with a 250 grainer.
    Ran a ladder test and got to 41 grains before our rifle finally stove piped. No pressure signs yet......
    But a thinking with the 16 inch gas system maybe some slower powder as we do not need a 250 grainer cooking along at more than 2000 fps for yotes and other small critters here in east ILL-Noise.
    Question is how much slower powder to get a smidge more bolt pressure.
    "Come unto Me, all you who labor and are heavy burdened, and I will give you rest." Matthew 11:28
    Male Guanaco out in dry lakebed at 10,800 feet south of Arequipa.
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  2. 07-28-2021, 07:26 AM #2
    26Charlie
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    I don’t think you’ll get more pressure out of a slower powder - it is after all, a straight wall case. Going to a 300 grain bullet will give you less velocity, if that’s what you want. You have 16 lbs of that powder, why switch? I confess I’m having a little trouble following the logic here.
    Last edited by 26Charlie; 07-28-2021 at 07:41 AM. Reason: Auto correct error
    "You will wantonly strike a hornet's nest which extends from mountains to ocean, and legions, now quiet, will swarm out and sting us to death. It is unnecessary; it puts us in the wrong; it is fatal." Robert Toombs, Democrat of Georgia, warning of the results of the imminent attack of the Confederacy upon Fort Sumter in Charleston Harbor, 1861
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  3. 07-29-2021, 08:26 PM #3
    missionary5155
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    Good point on the straight wall case.... Thanks 26Charlie
    When we get back home area I will move on up the scale.
    "Come unto Me, all you who labor and are heavy burdened, and I will give you rest." Matthew 11:28
    Male Guanaco out in dry lakebed at 10,800 feet south of Arequipa.
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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