shot my 16ga this morning to check Nitro shells again and it was about 1/2 a boom. Anyrate ordered some Federal custom shellsOnly issues I have experienced with Nitro in the past was the shell not performing correctly. One time squeezed off on 12ga with mature gobbler at 30 yds and sounded like a 22 short going off. personally, I attributted it to moisture might have got in shell at some point. Second time with 16 ga squeezed trigger and nothing happened. forunately, this happend preseason checking my shotgun. Primer had dimple but didn't go off. had other 16ga shells that worked fine. A shame because I really like the patterns of the Nitro shells. I use other shells now and as I am an under 35 yd kind of guy there are other options