OK..just wondered if you had a chance to "take them apart" so to speak.
I`m just a basement mech. who like working on guns that don`t shoot. I do not do any metal work, but do consentrate on how the rifle is assembled, in particular it`s bedding. I started doing this when I was 15, my own firearms...I`m now 67, and have learned a few things along the way.
The most important is the guns bedding, IMHO, which includes the floor plate and mag box. I would think Jarrett knows this too, but probably not apparent in the guns looks, only it`s overall performance, as I have found one of your statement to be very true. A well set up firearms will shoot all bullet weights consistently well.
