:shock: How do I check the head space on a 7mm tcu. I adjusted the die IAW instruction. Checl the C.O.L. and was under the max recommended by the manualwas 2.675 ( my COL is 2.470). Check the case for MAx lenght and I was under at 1.741, that is less than the trim lenght. I had only fired it twice. I had check the neck run-off in new brass that I havent fire formed and the run-off is 8 to 10 th thousand. is this common? TIA for any help that you can provide.