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Thread: MP Molds 327 Single Seven Mjolnir

  1. #1
    Boolit Bub
    Join Date
    Nov 2006
    Location
    Nebraska
    Posts
    71

    MP Molds 327 Single Seven Mjolnir

    Have been trying out some loads with HP and solid versions of this bullet, my two uses for the caliber are a Marlin 32-20 and Single Six .32 H&R, primarily the former for silhouettes.

    Mine's a GC mold, the first one of the type I've tried and the GC's (Hornady) crimp on well. I use LBT Blue lube which is what goes on my .41's for use in a Marlin, also at silhouettes. No intention to run these bullets very fast, 1300-1500 or so will be enough. With a scope on board the rifle my first day at the range testing a variety of bullets and powders found the solid version of this bullet giving the best group at 50 yards with 9gr of AA #9 for 1497fps. Loaded up a bunch and shot my first match of the year with mediocre results, likely as much from lack of practice. Putting the scope back on I got 3 shots into 1.5" at 50 yards, not quite as nice as on testing day, and switching to Lil'Gun and Reloder 7 the groups were worse at 1252-1504fps. Those same charges of powder under 115gr cast from Moyer's gave better results, at 1269-1609fps.

    Might be the heavier bullet needs more speed, or just lucking into the right powder, but I have yet to read other reports on bullets from this mold. So far in the .32 H&R it's been poor at 840-960fps using AA9 and 800x.


    I don't know that I've seen the Cup pins on other molds I've looked into, what is the purpose of it vs. a short HP pin?
    Last edited by kgb; 05-16-2019 at 04:53 PM.

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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