I have and still do reload lots of IVI brass in 308. I also used it in my 243 after necking it down, and now in my 243AI. I got a hold of some IVI match brass, it seems to be very nice. Flash holes are already de-burred. I weight sorted it to see how even it was. I sorted 500 pieces and it broke up into 3 even groups of 1 grain variance, and I had 27 odd balls that I just through in with my m14 brass.
I was getting 5-6 firings out of the machine gun brass in my M14. I had 1 head case separation on the 7th firing and decided to draw the line at 5 reloads.
To get rid of the primer crimp I just chuck a counter sink from home depot in my drill press. Just takes a quick touch on the counter sink and the crimp is gone.
And thank you for selling me 1200 cases. This brass is ideal for M1A M14 reloading. By the way dies size the outside of the brass. The additional thickness is on the inside.