My kids and I got to go to the range yesterday. We took the .22 rifle, the C9, and the shot guns. We had lots of fun. This time I only shot Federal aluminum through the C9. I did not have any problems that I can remember. I still don't think that I was as accurate with the Federal as with the Blazers though. I did hit the bullseye twice at 7 yards, but I think my groups were a little bigger. I'm not positive, I didn't measure them. My kids, 19 and 23, did have some problems with feeding though. This was their first time shooting the C9. I tried to explain about holding the gun properly and limp wristing. But they still had problems. I did not keep count, But I think my daughter had a FTF each mag she shot, and my son had FTF in all but one of the mags he shot. I still have not done any adjustments to the gun. That may come in the future. Based on yesterdays results I think I will continue to buy the Federal aluminum for the range, since it is $3 cheaper than the other brands.