New brass 1st firing....book load, 29.4,29.7 lever, Berger 105 BT Target, .020 off . Tried to post pictures, but won't let me. Anyway, have shot Hornady Black and new load 6.5 cases necked down.On the new cases necked down had 4 cases crack, from body shoulder junction down the body between 1/4" to almost 3/4" long. None of the Hornady cases had cracks, or were scratched. The new cases other than the 4 I have discovered so far look ok. I did have some that after sizing, had the "belt". I discarded the belted ones...but I am really skeptical about reloading any of the new/ resized cases....I was expecting the Hornady brass to be the throw away brass, but even though the primers were flat, the brass held up better than the new cases. Would really appreciate an education on the idiosyncrasies of loads, brass, tricks to make the ARC run smoothly. I do have 100 6.5 Grendle Lapua brass I could size, but till I know it's not going to be one and done, I won't risk it. Thanks for any help....rsbhunter
Not all who wander, are lost......