I've not owned 100 different remington 700's but I've had a few.
Also had a couple factory rugers, and all would shoot 3/4 moa or better with developed selected handloads.
Getting 3/4 moa with factory ammo is a matter of luck with certain factory guns IMO. That has been my experience. In fact, I don't recall any factory ammo in any factory gun that would consistently shoot 3/4 moa.
All factory bolt action rifles I've had were capable of sub 3/4 moa (some sub 1/2 moa), but they've all taken quite a bit of load development to shoot this sub 3/4 and sub 1/2 minute consistantly. The ones that shot sub 1/2 minute needed bedding, floating and trigger work to shoot that good. This is also based on shooting from a benchrest with high power optics on days with good conditions........I don't claim to be able to shoot 1/2 moa under all conditions.
Heck, I've got a Marlin lever action 45-70 that shoots the Hornady factory ammo into 1 moa out to 200 yds (farthes I've shot it so far). I've only shot 5 - 3 shot groups with it, but all 5 groups were moa.
I normally test heavy barrel or varmint guns with 5 shot groups, and at 200 or further. Lots of 300 and 400 testing.