You can thank Vista for screwing up 10mm like they did 45 acp. Federal and cci 10mm stuff is now coming with small primers sometimes. Just screws with us reloaders. The small primer brass is probably stronger its just a Pita to sort stuff. I wish starline would get their 10mm back in stock.

I used to run a glock 20 with a kkm match 40 barrel in it that was throated for 10mm length. I bought cheap once fired 40 brass and loaded it once and never chased it. Then the XDm 10mm came out and I got rid of tge glock and gave 2 XDm10s now. I wish kkm would make me a 40 barrel for my xdms. 10mm brass is too expensive to not pick up.

Bb

Last edited by Burleyboy; 12/09/20.