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Thread: 400gr 450 Bushmaster success!

  1. #1
    Boolit Buddy
    Join Date
    Dec 2016
    Posts
    280

    400gr 450 Bushmaster success!

    Finally got enough saccrificial boolits under my belt to get some decent enough to try at the range.

    400gr cast lead bullets, SWC Keith style.

    29gr of IMR4227 netted 1520fps avg vel and appr .5" @ 50.

    Recoil was a gentle push.

    Need to tune the load a little and stretch it to at least 100-200 yards but feel pretty confident with it for a whitetail load.

    @ 200 yards will be hitting with appr 1k ft/lbs.

  2. #2
    Boolit Buddy
    Join Date
    Mar 2008
    Location
    Idaho
    Posts
    138
    Interested in your project. I've been buying Bear Creek Arsenal uppers like they're going out of style, working on a couple of 6.5 Grendel right now (not for casties, though). 450 Bushmaster has my attention... Will be watching. Thanks for posting.

  3. #3
    Boolit Master Win94ae's Avatar
    Join Date
    Mar 2013
    Posts
    585
    Good luck!

  4. #4
    Boolit Master
    Join Date
    Jan 2010
    Location
    Space Coast, FL
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    2,319
    What twist do you have and bolt or gas?

  5. #5
    Boolit Buddy
    Join Date
    Dec 2016
    Posts
    280
    Thanks!

    Barrel is an 18" 1:16 from Rhineland that I put on a Savage Axis that used to be a 223.

  6. #6
    Boolit Master


    cwlongshot's Avatar
    Join Date
    Jul 2012
    Location
    Central Connecticut
    Posts
    3,729
    Watching this too!

    I have made some dummies with a 385 Lyman. But they need to be so deeply seated I didnt see the advantage. For me and strictly me I have 45/70's able to be loaded to all levels so no real necessity to push this delightful med sized 45.

    But thats ME, interested to see what upu can do and what you discover.

    I like a 330g Gould HP bullet with 5744. I couldnt get good accuracy at the target 1400 but at 1650 it shoots touching holes @ 100. With air WW that might be lil fast.

    CW
    NRA Life member • REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
    Come visit my RUMBLE & uTube page's !!

    https://www.RUMBLE.com/user/Cwlongshot
    https://youtube.com/channel/UCBOIIvlk30qD5a7xVLfmyfw

  7. #7
    Boolit Master
    Join Date
    Jan 2010
    Location
    Space Coast, FL
    Posts
    2,319
    I have a pair of assembled 450B's, a 16" Carb gas and an 18" Mid gas and both 1-24. Both pushing just over 2200 with Hornady ammo and honest 1 1/2" groups @100. Something about this cartridge tickles me even with the cherished variants here in the classic 45-70. I am constantly talking myself out of a levergun build in it. The 18" bolt gun with a faster twist for lead fatties sounds like a fun road, keep us up on your adventures!

  8. #8
    Boolit Master
    Join Date
    Jan 2018
    Location
    North Central
    Posts
    2,514
    The Ruger Ranch in 450 looks good to me. You would really burn through the lead though.

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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