Hello boys!!
What should my next caliber be? I have a 7 stw and would like a comparable cartridge that i could use for longrange as well. What say you guys?
Darrin
I guess it depends on what you're wantin' to hunt!?!
From all accounts, the 7STW is a freakin' death-hammer to a lonnnng way out (and with reasonable barrel consumption at that). Honestly, you've made a great choice with it.
If you're wanting smaller, noting the reference to your uncle's 6.5mm-284, yeah one of the current 6.5mm press-princesses (6.5mmCreedmoor/6.5-284Win/26 Nosler/et al) would accomplish that. If even smaller, again, it depends on what you're trying to accomplish and/or avoid (hefty recoil, obnoxious muzzle blast, less expensive components, etc).....
However, if you're really wanting to "up your game" noticeably, yeah a big 338 would most likely be your next caliber destination. I'm skipping the .30cal because what you have brings similar performance to the big .30's.
I've listed the "big" 338's from generally fast to MUCH faster;
1) 338 RUM
2) 338 "Edge"
3) 338 Lapua
4) 338 Edge +P
5) 338 Lapua AI
6) 338-378 Weatherby
7) 338 AX (Allen Express)
8) 338 AM (Allen Mag) or similar 338 CheyTac chamberings
Otherwise something really huge like a 375 CheyTac/375 SnipeTac.
From there, maybe a 20mm Anzio?