What do you guys run in the 264?

I've got Fed 215's and CCI 250's. I've run the 215's in 300 and 338 Win. I have a little 7828 and RL-22 left, but I'll mostly be burning IMR-4350 to H-4831 type powders.

In my 264 I use winchester mag primers, I use win mag primers when I use powders that burn slower than H4831, with faster burning powders like IMR 4350 the Cci 250 primers are fine.

I've always used Federal 215's with no complaints.

I'm running the match version of the Fed 215. When I went in for magnum large rifle primers, that's all the store had in stock.

I ran IMR 4831 with the Hornady 129's and used Rem 9 1/2 primers, accuracy was less than 1/2".

I use CCI 250s in mine