[autorim]

I would agree with you on the Mauser being better than the Springfield. In the era in which your rifle was built the Mauser was probalby considered the best unless it was the M70 Win.

I tried the Sierra 85 grain HPBT a lot and never could get it to shoot in my rifle. The 75 grain Sierra HP shot really well though. I would definitely try the 85 grain Nosler partition. The 95 might stabilize in the 1-12 bbl. When I bought my M700, Remington had changed to the 1-9 twist so the 100 grains did very well.

As you probably know, the 6mm Rem is based on the 7mm Mauser case as is the .257 Roberts. I once had a Ruger No. 1 in .257 Roberts and it performed very well with the 120 Nosler partition. The No. 1 has a 26 inch Barrel and my reloads chronographed at 2830 fps which is probably better than many .270 shooters are getting from a 130 grain factory load in a 22 inch bbl.

With the Mauser action, you should be able to seat your bullets out past specs to nearly touch the lands. I try for about .025 inch bullet jump in hunting loads in I can seat out that far and still feed through the magazine.