My brother had a couple of 6.5 Carcanos back in the 60s. When we shot those long 160 gr
military 'spears' in our sand pit range, we'd dig up our bullets. My 7x57 had two bullet types,
140ish spitzers and 175 RN, much like the 160 gr 6.5s. The spitzers were found about 6" into
the sand, mashed flat and split open from turning sideways. The long RNs were far deeper and
usually intact. But, if they hit a tiny rock (not much real rock in Fla) and busted the jacket, just
lead and copper fragments, and the sand was white, I think from heat.
HS ballistics lab. FMJ RN would go at least a foot to 18" in sand, and often looked like you could
reload them. Later I actually did reload and reshoot one, just for the hell of it.
Bill