Re: 338 cal comparison
you can get Federal brass for them BUT, you have to buy loaded Federal ammo to get the stuff... not sold in bulk anywhere. If Federal ever makes it in the High Energy version, I'd get that stuff for sure.
I easily got 200 fps faster reloads in the HE brass than their standard stuff in my 338WM. 250 Barnes X bullets at 3050 fps vs. 2800 in the other stuff... with the same load. Remington and Winchester were all the same too.
I lost primer pockets in three to four loadings but other than flattened primers there were no other psi signs at all. I'm sure the load was in the low to mid 70k psi range though.
Both 338wm's I had would group under .7 moa with those top loads too, my buddies still does. I jumped up the the Ruger 416WBY because I knew I was pushing the pressure and still wanted the same performance with a little more safety margin though.