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Thread: Gfla 450 bushmaster today

  1. #1
    Boolit Master
    Join Date
    Aug 2011
    Location
    no va
    Posts
    779

    Gfla 450 bushmaster today

    I was burning some rounds today and I remembered that my bushmaster gfla upper gets no love at all these days. Hornady brass and cci mil spec mag primers w a accurate mold 275 gr powder coated then gas checked I shot 50 and 100 yards.

    40 gr imr 4198 50 yards 1 inch 5 shot repeatable over and over
    40 gr imr 4198 100 yards 2 inch, 1 3/4 inch, 2 1/4 inch groups

    Iím getting some residues that are hard to patch out but even then I shot 50 rounds today and the fouling did nothing to deminish the accuracy

  2. #2
    Boolit Buddy
    Join Date
    Jul 2014
    Location
    Austin TX
    Posts
    263
    You might try patches with Acetone or Ed's Red solvent. I get crud like that when the Boolits are not baked enough. One or the other softens the crud.

    Edc

  3. #3
    Boolit Master
    Join Date
    Aug 2011
    Location
    no va
    Posts
    779
    I’m believing these bullets may not have been cooked long enough. I rebaked the rest of my stash w another coat.

  4. #4
    Boolit Master
    Join Date
    Aug 2011
    Location
    no va
    Posts
    779
    Turns out that it’s not cure problems. I’m prob at the bullets capabilities but durring my retesting today I can deal w the bullets fouling gradually in my barrel. I was 1 inching and 1 1/2 inching again. Real good shooting gun. 1-24 inch twist rate 275 gr bullet 40 gr imr 4198

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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