Thread: tidy up crown on .22lr

Just get a drill bit wider than the bore but less the muzzle, and simply cut your own recessed crown.

I just do it with a normal hand drill aiming it straight up and down by eye and despite what you might read it doesnt have to be exact (or I am pretty good at doing it perfect) and it doesnt even change the point of impact at all. Just aim it as straight as you can and drill it out a bit, eighth of inch down. Or counter bore it as far as you like to get into clean rifling...Put a couple of shots through to smooth any burrs.


I have done the method with round head screw with valve grinding paste several times and I have done the above as well and it works as well or better frankly.