Yeah, very deep. I wonder what the jacketing material was?I guess everything is according to scale but that is some deep rifling
They were not worried about too many grooves damaging the jacket. How many grooves is that???
LMAOPersonally I prefer 125r pattern rifling on my naval artillery but I guess with the shortages and backlog in the gun world the navy just has to take WhAts availible
96 grooves, 0.150” deep
Twist of 1 in 25 must be 25 feet. If my math is right equivalent to a .308 with a 5.77” twist.
![]()
16-inch/50-caliber Mark 7 gun - Wikipedia
en.wikipedia.org