I just remembered, that muzzle velocity he was talking about is only for the really lightweight bullets, like 40-50gr - right? You know. the ones that tumble like a circus act?
I load and shoot some 62gr hollow points that are super accurate. With this load my kid with his young eyes can print clover leaves all day with the AR we have set up for varmints. We have a couple prairie dog towns that we shoot and he rarely misses anything out to a hundred and fifty yards. As accurate as that rifle is nobody in this house will ever hunt big game with it. I’m building a couple of 6.8’s right now. These will be light, short, and quick blacktail brush rifles. The impact energy in this round is a lot better than the 223. As with everything else I load and shoot the 223 hollow points are not loaded to max velocity. I load for many different calibers and I am an accuracy freak. If I build it own it and shoot it then it has to shoot half inch groups out of a machine rest. I always start out with a mid load and then work up and down to find the sweet spot for that rifle, powder, and bullet. I usually find that sweet spot a little under max load.