I have a really good load worked up for one of my ars, with 77gr smk. I got a new ar pistol with 11.5” barrel yesterday and went to zero it today. That being said I used the loads I had already. The 77s were averaging 2280fps. Is that going to be fast enough to fragment as keep them loaded as a sd round? It’sa really stable load in my 16” and would prefer to keep uniformity across my ammunition. It did this today at 100 yards with magpul buis pros. So the gun accuracy wise likes the load. Just wondering about terminal performance to 200-300 yards.