Degrease the chamber and the cases. Maybe it will help. Mine is an 81 and hasn't had problems with dragging. I haven't shot my 308 yet. But the 358 Win. is a 243 that was rebored by JES. Maybe his chamber is slicker. I always thought of the BLR as a bolt gun driven by gears. Maybe find a 'smith specializing in BLRs and have him clean and lube the action. I cleaned mine in an ultrasound machine then dried and sparingly relubed. I have the instructions to take it down and reassemble it. But I chickened out on total disassembly. If you find someone who's specializing in them let us know. It may generate a lot of business for him. Be Well, Rustyzipper.

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy. Its inherent virtue is the equal sharing of misery. Winston Churchill.