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  • ofitg's Avatar
    09-09-2018, 02:39 PM
    I mis-spoke in my previous post - the H-48 formula which the Army abandoned included glass powder, not sand...... I am not sure if powdered glass is significantly different from crushed sand (?) Hatcher's Notebook mentions that some shooters...
    648 replies | 238271 view(s)
  • ofitg's Avatar
    09-09-2018, 12:15 PM
    These guys present a good summary of primer mixes - https://www.northwestfirearms.com/threads/priming-mixtures.58110/ FWIW, when the U.S. Army deleted sand from their primer mix a century ago, they specified that the antimony sulfide...
    648 replies | 238271 view(s)
  • ofitg's Avatar
    09-06-2018, 09:48 AM
    Ahhh...... oh well, I will just stick with my jar of 40-mesh crushed sand. Thanks for the update!
    648 replies | 238271 view(s)
  • ofitg's Avatar
    09-05-2018, 07:28 PM
    If you're looking for an over-the-counter product, this powdered glass at Harbor Freight might work - https://www.harborfreight.com/510-lbs-ground-glass-4070-grit-abrasive-media-63674.html
    648 replies | 238271 view(s)
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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