Thread: Miss fire and stuck projectile.

Originally Posted by zimmer

Mmm a bit short. 45 - 55 thou is typical. For old military with bad headspace can be longer.
Roy F Dunlap (1950s so old) say 62 - 66 thou for large primers and 60 - 64 thou for small primers. These seem a tad long in the modern context.
IIRC I measured all my Barnards at 53 thou.

https://barnardconz.worldsecuresyste...in%20(003).pdf

That is interesting as my bolts are in the .030"-.040" range with an FR8 with a whopping .065" measured .mmmmmm