Out of curiosity, I'm trying to figure out what are the potential barrel swapping mechanics are for my H&R 370, which is a FN Mauser "Supreme" Commercial action from the 60s/70s.

It is in 22-250, so, 250-3000 savage would most likely be a simple and easy barrel swap. *but also kind of pointless*. So, lets say for example I wanted to switch the barrel to something in the 28-30 caliber range? Such as a 308? Or maybe even get a new bolt and barrel for 223/5.56?


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