02 July 2023, 21:46
Atkinson8X57
BRAIN SLUMP: AGE RELATED???

8X57 JS IS 323 BORE?
8X57 J IS .318?
CORRECT?
02 July 2023, 22:00
RogersGunWorksRay,
You'll be glad to hear your brain got this one right. J bore is .318 & S bore is .323.
03 July 2023, 02:44
Atkinsonso why the JS on some mausers they are .323 also Im thinking
03 July 2023, 06:49
eagle27quote:
Originally posted by Hipshoot:
Isn't S for spitzer?
Hip
Yes the larger bore JS 8x57 cartridge was introduced in 1905 using a 154gr Spitzer bullet with MV of 2880 fps. The earlier .318" bore J cartridge used a round nose 226gr bullet with MV of 2093fps.