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Thread: 450 Bushmaster Questions

  1. #1
    I'm A Honcho!
    bluejay75's Avatar
    Join Date
    Mar 2017

    450 Bushmaster Questions

    Greetings Gents,

    Hate to ask a j-word question here but I have no other options. I am looking for a H110 or W296 load for the 240 Grain XTP MAG.

    I have done a work-up and am getting about 2 inches at 40.5 grains of W296 with great combustion. But ragged hole accuracy at 35.8 grains with poor combustion and flames shooting out of the barrel.

    What do I do?

    Any loads work for you with the same components?

    Share ANY jacketed or cast 450 BM successes with me please.

    You never know how you rank amongst men 'til you have seen what will break another man.
    The original "Bluejay" US Army/ US Navy 1945-1970.

  2. #2
    Boolit Bub

    Join Date
    Aug 2013
    Rochester, NY area
    Sorry, no experience with either powder But I'm using Lil Gun in the 38-39 gr. range with good results.
    Last edited by Dancing Bear; 01-27-2020 at 01:44 PM.

  3. #3
    Boolit Master

    Join Date
    Jun 2009
    North central Ohio
    I switched to IMR 4227 for the same reason.
    Before you embark on a journey of revenge, dig two graves.

    ― Confucius

  4. #4
    Boolit Master

    cwlongshot's Avatar
    Join Date
    Jul 2012
    Central Connecticut
    Have you tried the AA#9?

    H110/296 worked OK. 4227 and 5744 where better accuracy. #9 really woke up mine!

    4198 & RL7 is more that could work (they do in 45/70 )

    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.

  5. #5
    Boolit Bub

    Join Date
    Mar 2009
    S.E. Iowa
    Hornady 10th edition. 240 grain xtp mag. win 296 starting load 29.2 max 38.8. h110 starting load 30.6 max 40.6. I use the 250 grain ftx in a bushmaster upper 20 inch barrel, with 33 grains of lil gun. Its shoots very well, only powder i have tryed.

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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