Why would you want a wildcat cartridge?
That 30 American shoots a 125gr soft point at a shade over 2500fps.
You can get an AR and ammo ready made in 300BLK or 7.62x39...
By all means make yourself happy. I'm glad we have the freedom to choose what we shoot and hunt with. I'm more simplistic, I guess.
Did not have any trouble taking a buck at 100 yards with my 7.62x39 a few days ago.
It also shoots a 125gr soft point at 2500fps.
I have an AR10 in .308 as well, and it's not that heavy. A bit more than an AR15, but not much more. It's much more expensive to shoot though. But when you need the extra range and power, a .308 is a nice option.
Made a one shot kill with the .308 last Sunday at a distance of 375 yards lasered.
