if you get a chance pick up 20 rounds of Federal Gold Medal Match or creedmore 30-06 ammo there are not to many guns that wont shoot this stuff well. the creedmoor you can sell the once fired brass for a good penny.
install the original gas plug. go prone with a big old sand bag supporting your front arm and get a base line on what the rifle can do with a know good ammo....
Good advice, and if you are not reloading, you have a neighbor (me) who will buy the Creedmoor brass if Lapua. Some of the Creedmoor brass is Lake City and I actually prefer HXP over the LC brass.
Reminds me that I may buy some more Creedmoor ammo. Partly for future matches when my current brass starts to go, and partly for trying out a friend's M1. Due to 'getting old is a bitch' health issues, shooting is getting difficult for him and prone is out of the question. We plan to make a range trip so I can do a field strip, clean, lube, sight in, then shoot for groups. I'd prefer to use factory ammo for this since it's not my rifle.