Full length resized once fired Winchester 7WSM brass, length to shoulder increases after full length resizing? Has anybody else had this problem of cases not being able to chamber after full length resizing?
Picked up a Howa 7WSM as project gun. Purchased 60 rounds of Winchester 7WSM 150 grain ammo and a set of full length Hornady 7WSM reloading dies. I shot the Winchester ammo with expected results, shot two to three inch groups, last group surprised me at 1.25”. Deprimed the once shot brass with a RCBS universal deprimer. Cleaned brass in Lyman tumbler. Lubed the cases. Lubed the inside of the neck with graphite. Set up the die as per directions with Hornady die just about touching the shell holder. Resized case with degree of difficulty, checked case length which was 2.1” shoulder moved forward .003 to .004 inches. Tried a number of different options, backed die way out, pulled off the expander with same results. The Winchester ammo cambers Ok as does Federal ammo. Neck moves forward instead of back? I just do not get it?