Blacksmith101
Grumpy Old Man
- Jun 22, 2012
- 22,252
FYI
I was reading Understanding Firearm Ballistics by Robert A. Rinker and came across this on page 56:
I was reading Understanding Firearm Ballistics by Robert A. Rinker and came across this on page 56:
"Actions and cartridges must be a suitable match for pressure as well as cartridge fit. For example, it is possible to change barrels and convert a .30-40 Krag to .30-'06. The .30-40 Krag produces a breach pressure of about 43,000 p.s.i. and the .30-'06 about 55,000 p.s.i. The Krag action and its single locking lug cannot safely handle the extra 12,000 p.s.i."