30 Remington AR (already dead) as it turns a AR15 platform into a 300 Savage. It's a terrible shame that Remington pulled a Remington on this round.
The .458 SOCOM would def get honorable mention, as it offers a ton of power and some truly powerful subsonic options...it's a 45-70 in a AR Carbine. Before you ask, the answer is "because you can"
I like my .480 Ruger and think it's a impressive round. It's a 44 Mag and a half, in much the same way a .375 is a 30-06 and a half. LIke the '06 and .375 it does it with no fuss.
I haven't picked up a .204 yet, I think it's a noteworthy FACTORY round, but I probably will before spring.
The 17HMR, even the HM2, are benchmark cartridges from my perspective.
Last edited by kciH; 11/09/15.
