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Thread: what steel for firingpins?

  1. #21
    Boolit Master
    Join Date
    Apr 2009
    Location
    Houston TX
    Posts
    761
    I use Grade 8 bolts, after finished machining, case harden. Have made a few for old break open shotguns purchased in pawn shops.

  2. #22
    Boolit Mold
    Join Date
    Dec 2017
    Posts
    3
    s7 or d2 with heat treat following machining

  3. #23
    Boolit Mold
    Join Date
    Nov 2015
    Location
    Minnesota
    Posts
    8
    AISI 1144 Steel also known as Fatigueproof steel. I buy from McMaster Carr 3' length is less than $10. No need to heat treat after Machining.

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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