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Thread: Boolits and gas checks k-31

  1. #1
    Boolit Buddy
    Join Date
    May 2013
    Posts
    125

    first casting for 7,5x55 swiss

    ORIGINAL SECTION " Casting & Reloading for Shotguns " (I think "shotguns" are RIFLE ) first casting for 7,5x55 swiss

    Sorry if I write in the wrong section, but I have some problems concerning both the merger and the gas checks.
    For the first time, I have made mergers for my k-31.
    I used the mold STAMPO DC CTL312-160-2R SKU: 90361 with G.C., alloy 90-5-5 at a temperature of about 350 ° C. (660 F° ???)
    These are my questions:
    1) - I noticed that some balls have minimal irregularities as shown in the photos: can they be used or should they be refounded?



    2) - some g.c. are not held back (about 20% of boolits): what can be the cause? I used Aluminum coil, thickness 0.14.
    In all the other boolits, however, just scratch a little with my nail and the gas check is gone! Maybe they sold me too thin aluminum? I'm sorry because I bought it in England and I spent a lot!
    Last edited by airone46; 04-26-2020 at 12:26 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