Originally Posted by ijemerson
I got slight high pressure signs but nothing crazy. Gerrardstown, Wv at Peacemaker national training center
Man that's scary to me, be safe and at least consider switching loads. Speed is not worth the safety factor. I have had good luck with the LR118 round from LC in my M1A they prints raged holes at 200M. That scope your running has a lot of internal adjustment (27 mils) so a small reduction in speed should not cause you to run out or drop.
Just remember that using a suppressor increases the gas volume in your barrel. The bullet still exits the barrel at the same point (crown). But it still increases the amount of time the gas is in the barrel and can. This results in more back pressure and more forceful operation of the bolt (the ips speed of your BCG increases). Which in turn may overload your weapons safety designs. You may be able to slow it down with a heaver buffer but I don't know if that will reduce chamber pressure, my guess would be no.
I suppose the whole reason I am mentioning this is every time you pull the trigger on that load it takes its tole in the from of stress on your Bolt. Real glad to see other AR shooters here and I want you to stay around here so be safe, and keep posting about that nice rifle.