Sorry to reopen this one BUT, I had read it last week while contemplating a Sig Mosquito purchase. Along with some other less than stellar comments and reviews I decided against the Mosquito. At local gun show this past weekend I held and examined several other plinkers. However, price, fit, feel and finish brought me back to reconsidering the Sig and I wound up buying it. Took 9 different 22 ammos with me to test today due to all the stories I had read about being picky with ammo. The gun performed nearly flawlessly (right out of the box) on all kinds of cheap, bulk 22. The only issues I had were 2 fail to feeds on federal bulk. Ran off 200 rounds otherwise with no other issues. It shot thunderbolts, centurion, armscor, blazer, GBs, Win, M22s, aguila, Gun is extremely well made, great grip and accurate. I guess Sig either resolved the issues or I just got lucky.