hunters supply 165 gr cast bullet?

[andiarisaka]

Might be a good idea to slug the bore of that Mosin. If that bullet is smaller than the groove diameter, which it likely is, things could get messy for you. Cleaning leading out of a barrel isn't fun. Your groove diameter in that Mosin could be anywhere from .310-.316 The one I have is .314. You'll want to know the bore diameter too, in order to be sure the nose is large enough forward of the crimp groove so that it'll ride on the top of the lands. Absolute accuracy might not be important to you, but it's a lot more fun when you hit what you're aiming at.