Actually shot a buck pronghorn in his bed at 200ish yards. He jumped up and ran about 20 yards and fell dead.because you missed a deer at 1/2 mile but shot a doe antelope instead?
Beg to differ, In the right situations with the right bullets, the 223 works just fine for deer size game. My buddy had his 6 year old use my AR, with some handloaded 55 gr hornady spire points I had laying around to shoot his first deer last year. Lung shot, 40 yd run and a dead deer with 2 holes in him. I see this happen every season. You'd be surprised how many whitetails fall to a 223 every fall for kids. If it'll handle a whitetail, its fine on a 90 lb doe antelope.I'd use the 7mm with a smaller bullet selection.
I would avoid the 223, doesn't typically have enough performance for an ethical kill on animals, IMO.