I bout this 10P-SR a couple years ago and she's been a great shooter. I've just noticed, however, that the crown is rough. There is a noticeable edge if you scrape your fingernail along the muzzle at the bore. Feeling from inside the bore to outside, the muzzle it is smooth. Going from outside the muzzle to in, the crown is rough and seems to have burs. I ran a Qtip over it and nothing stuck but she's still rough.

Though she shoots 1/2 to 1 MOA, should I lap the crown? None of my other rifles feel like this at the muzzle.
See pic, thanks

russ