Thread: Miss fire and stuck projectile.

Originally Posted by Tankd

Firing protrusion should be about .030" to .040" . From what you have said you have a case of short , headspaced , rounds . The extractor is not holding the case hard enough against the bolt face and has pushed the round forward.
One possible solution is to push the projectiles out so that the round is held against the bolt face remembering that this will increase pressure .

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