Have a quick question about 7mm brass.....I just got the TC 7mm TCU 10" pistol. Having trouble making the brass. Tried using the 7mm TCU dies and about 1/2 of all made will not fire form. Meaning the primer will not go off, it has a small dent in the primer pocket and at times the brass is INSIDE of the Extractor........ I got a new one (extractor) but the same. Do not want to put a .223 down the barrel.....So what do I do???????? Thanks for your time