I've taken a 100lb buck with Corbon 7.62 x 39 Hunter ammo. It ran about 50 yards before piling up.
The second one was a small doe. That shot went in the boiler room broadside but got deflected back somehow and came out the stomach. That deer took a little longer to expire.
That's all I can offer. I have a 556R also.
2012 Rubicon Unlimited, BDS 3" Springs, Bilstein 5100's, Metalcloak Front/Rear Control Arms, 35" Toyo Open Country MT on Mickey Thompson Classic II Black, Rugged Ridge XHD Stubby Front Bumper, Engo 10K Winch, Ace Rock Rails, PureJeep C-Gussets & Control Arm Skids, EVO Pro-Tek oil pan & Trans Skids, G2 Front Axle Shafts,Tera-Flex Front Sleeves