I've had the exact same experience…owned at least a dozen…glass bedding, some minor locking lug lapping and handloaded ammo always achieved 1/2-5/8ths" groups with at least one bullet…the ones I spent money to true up and rebarrel went 1/4" territory bedded in pricey fiberglass stocks…I've had good luck with all my Remington 700's. 1/2 MOA even on my factory guns, including an "E" prefix as well as RR versions.
The one I avoid are the right handed ones. I prefer the left handed versions.
Can you be more specific regarding primary extraction? What specifically can I see with my own eyes?The biggest thing to look for is the primary extraction, or lack thereof. You can see this with your own eyes. You can also look at the uniformity of wear on the back of the recoil lugs as another (albeit not definitive) indicator of whether or not the action is somewhat true. Any evaluation beyond that will require taking it to someone with a lathe or other means of indicating surfaces. The primary extraction problem is not a show-stopper, but is it a couple hundred bucks to fix, and usually tips the scales against using a Remington donor action as opposed to and origin or solus, or similar.
So this is a manufacturing and tolerance flaw?The RR actions in particular are the ones to avoid. Picture attached showing severe lack of primary extraction on a 300 RUM we took in yesterday.
ETA: This is on a left hand action if it looks confusing. Those two angled camming surfaces should be touching when the bolt is lifted to this point.
Yessir. Bolt handle has to be heated and taken off, placed in a jig and preferably tig welded back on.So this is a manufacturing and tolerance flaw?