A bit off my original topic, but not to start a new thread, I'm going to be doing some testing of my M80-esque handloads tomorrow with the chronograph. Rounds seem to work fine in all three rifles so far, hit the target in offhand rapid fire, only cycling issue is that it won't always lock the bolt back on the FAL. What is the velocity range that it might hurt the M1a? What are signs to look for so that its not too cool of a round for the M1a and potentially damage it? Anything to be looking for?