zimmerstutzen
70 Cal.
- Joined
- Apr 2, 2009
- Messages
- 5,848
- Reaction score
- 1,213
Heavy flannel has a nap that bunches up and helps seal the grooves with out needing to swage the patch and ball into the rifling with a mallet. Until my house fire, I have a 54 cal barrel of unknown make that had rifling approximately .028 inches deep. (Not just at the muzzle) I never found any combination that would shoot right, short of using a mallet to mash an overly tight combination into the rifling. The balls were shaped like blunt stars when they came out and at a certain velocity made a pronounced "hissing" noise on the trip down range.