^^^We'll now I'd say any will work and it becomes personal preference.
If you're desire is to shoot factory ammo then I'd say 7 prc.
If your desire is to hand load its a toss up between the saum and prc. Keep in mind that Lapua already makes 6.5 and 300 PRC brass. If they make 7prc then that's the no brainer between the two.
I'm building a big boomer now and have a 20 inch 7 saum running 180s at 2840. I'm actually thinking of getting a 7 PRC built for long range with 180-195s and load some 143HH's in the saum for a short to mid range home rig. It would be flat to 300 and murder on Texas WT and hogs.
If you're desire is to shoot factory ammo then I'd say 7 prc.
If your desire is to hand load its a toss up between the saum and prc. Keep in mind that Lapua already makes 6.5 and 300 PRC brass. If they make 7prc then that's the no brainer between the two.
I'm building a big boomer now and have a 20 inch 7 saum running 180s at 2840. I'm actually thinking of getting a 7 PRC built for long range with 180-195s and load some 143HH's in the saum for a short to mid range home rig. It would be flat to 300 and murder on Texas WT and hogs.