I remember the specs on my Knight .50 cal ml indicated the grooves were .005"/.006" deep and I remember getting a .500" plug barely into the muzzle. On my Tikka .204, I'm not sure of the groove depth is but I can get a .199" plug into the muzzle, and I think a .1995" plug would go as well, not sure if .200" would or not.
I'm wondering how much over, if any, the groove diameter is over .204". And does the depth of rifling get shallower on smaller calibers or is it up to whatever the manufacture feels like making? Thanks.
I'm wondering how much over, if any, the groove diameter is over .204". And does the depth of rifling get shallower on smaller calibers or is it up to whatever the manufacture feels like making? Thanks.