For lack of a better term....schmutzup. This is on a Ruger Precision 6.5 with about 50 rounds through it and it's a super tight shooter. Took the stock brake off and said 'whoa hello what have we here?'. I know you guys will set it straight in a hurry if I need to have a gunsmith fix this. Threading the brake on and off there is no evidence it catches or has issues threading. I was going to put my Cherry Bomb on it tomorrow and use my Q can.....or maybe not? Don't know if this can have any adverse effect thanks for your input.