January 15th, 2017, 10:51 AM
Join Date: Oct 2011
Location: N. Tx
Man, Trust me, you will have no need to worry about Nikon's PROSTAFF 7 and it's 30mm tube handling the recoil of your M1A. Nikon scopes come with a No Fault Policy so that just in case something does happen you will be taken care of correctly. Heck, drop your rifle and break your scope,you are covered!
I just recently picked up a PROSTAFF 7 3-12 BDC for a bolt action .308 that I have. It should be quite a tack driver. I may even get a Custom Turret once I get a chance ot Chrono some ammo.