(06-08-2022, 05:13 AM)betolatinlu Wrote:(06-07-2022, 10:49 AM)grayfox Wrote: Yes please a couple more details. Annealing and first trimming the length were the first 2 things that occurred to me also. The grendel case is about 0.030 longer so that can run up against internal stops inside the sizing die.I am using Hornady 6mm arc FL dies. Some of the brass is 6.5 Grendel that I fired in my gun. First I annealed them then I trimmmed them. I used a li8ght coat of Imperial Wax and then run them thru my 6mm arc dies. NOTHING and I mean NOTHING I do will change the headspace on my cases. Up or down on the dies changes NOTHING . I have ruined so many cases that I am about to give up.I have been playing with this project for about three days now and I am about to say "YOU WIN".If I knew where I could buy some factory brass I would just s__t can this mess.
There are a couple places you can get 6Arc ammo for not too expensive... have you looked at that also, if for nothing than to get some cases fired from your chamber for some comparisons.
I will trim before sizing and see if that helps.Thanks fellas.
betolatinlu...
I found some 6 ARC ammo at Grab-A-Gun if you want to get some. It goes fast so don't wait...
https://grabagun.com/hornady-precision-h...eld-x.html
Still can't find new brass anywhere yet.
Maybe this will get you started...
The trick is growing up without growing old. -- Casey Stengal