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Thread: MP 432-640 in 444 Marlin?

  1. #1
    Boolit Master
    Join Date
    May 2013
    Posts
    3,599

    MP 432-640 in 444 Marlin?

    Does anyone shoot this boolit in the 444? I've got a few 44 cal moulds but have been thinking of getting this MP mould for the triple 4. With the 1-38 twist barrel should I go for gas check version?

  2. #2
    Boolit Grand Master


    missionary5155's Avatar
    Join Date
    Feb 2007
    Location
    Temporarily near Orlando FL
    Posts
    7,133
    With the advent of plain base GCs it is whatever you like.
    The 1-38 twist means velocity will be your friend if you have long range shooting with heavy cast in mind. Velocity means pressure.
    At slow fps (pressure) you do not need a GC on either type base.
    So with little information to go on get the GC mold and you have most the bases covered.
    Mike in LLama Land
    "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