I know that if you want sub MOA out of a rifle, then you have to have a perfect muzzle crown, but I was wondering just how much variation an imperfectly cut muzzle crown will really cause. I'm not talking about a benchrest crown that has been buggered up by being dropped onto the cement, but an SKS that would like to be a couple of inches shorter (18" instead of 22" bbl) but still shoot in the neighborhood of 2-2.5 MOA. I have heard of people squaring the muzzle up by eye and then using a countersink to deburr the crown, but it runs counter to the "Muzzle has to be perfect" paradigm that I have. I see that Brownells has the "right" tool for the job, but the cutter, pilot, and handle will run $70 after shipping, so I was looking for a more economical (but acceptable) solution ... if such a thing exists.
Any thoughts?
Thanks,
Saands
Any thoughts?
Thanks,
Saands