I bought a box of 525 Federal 36 grain cartridges with my new 15-22. I mounted my red dot sight and went to sight it in without cleaning it first. I had too many FTF's to count on that first range time. I got a chance to take it down, clean and lube it but the Federal's still didn't cooperate. I had a brick of 40 grain Blazer's that have a more rounded nose that I decided to give a try. I shot 65 of the Blazer's without a single FTF. I will save the Federal's for my 34 year old Browning Lever Action.