I was shooting my Buckmark yesterday, and was having issues with it. Either the rounds would not fire, or it would jam. I saw no primer strikes on the casings. I figured I had some bad ammo (CCI mini-mags). So, I bought some other ammo, to see if that was the issue. I still had the same problems. Then I realized that the site base screws where both loose. Something I did not think to look at. I'm going put some Blue Loc Tite on the screws, so that issue does not arise again. Just wanted to pass on my experience.