I decided to experiment with my recently acquired carbine to see if I could get a boolit that fed better than the Lee soupcans that I was shooting in it, and was still as accurate. About 1 or 2 in every 15 round clip would hang up but they were very accurate. The boolits I tried were round nosed, with a similar profile to fmj, but a little fatter nose. They were plain based, coated with Hi-Tec, and sized .310. I established the OAL by placing a boolit in a partially resized case and seating it fully in the chamber and measuring the OAL that resulted. I bought the boolits from Bayou Bullets. I was very pleased yesterday at the range. My gun loved then. They shot just as well as the soupcans and fed flawlessly. I don't know what velocity is, I shot them over 12.6gr H110, but the lack of gas check wasn't a problem. I can see me gettin' some mo' of deez!