oh, i see. well, the .223 stuff i've been reloading should go about 3000 FPS, with a VERY safe charge. i don't think it needs to go faster than that, really. that bullet weight at that speed will have a trajectory like a laser, out to 300 yards. my AR isn't scoped, i don't plan on scoping it, and torso sized silhouettes at 200 yards are no problem.
for longer work, i have the .308.