memtb,
Unfortunately, retained weight doesn't have nearly as much effect on penetration as frontal area of a bullet....
It does seem that way sometimes,
but penetration tests done with 9,3x62 in elephant showed that weight retention was ones best friend by a large margin.
WL 286gn went 20"
WL 320gn went 40"
NP 286gn went 23"
AFrame 300gn went 42"
The 286NP is only 5% lighter that the AF300 and NP had rather noticeably smaller expanded dia. than the AF.
so the NP should be the winner, yes?...well no, since NP penetration was miles behind the AF.
Final weight for NP was 217gn (75%) and the AF 298.5gn.(99%)
