[quote=bigsqueeze].
The only answer I can come up with is that the 30-378Wby is one of the worst cartridge designs ever ???
Bad enough to have held the 1000 yard BR record for...…….like...……..about 3 decades, bad.
Yep.
If your referring to the one of about 3 and 3/4" shot by Earl Chronister at Williamsport in the mid 80s, it actually it only held for about 2 years, and theres never been another with that cartridge.