Originally Posted by jfseaman
You didn't say your FPS or if you are approaching max book load (which book).
If you have a new M70 in 270 it should have a 1:10 twist. You 'should' be able to shoot up to 130 TTSX but ...
Combining my work with both and here is what I would suggest:
Try 110TTSX or 95TTSX as fast as you can go, they will probably stabilize better.
At .5 grains over book max (Barnes book and Nosler website) for all 3 powders, they run at about 3050 to 3120 fps with no pressure signs. But since I'm over book max, I'm don't want to run any more powder. It is a new M70 with 1:10 twist. IMHO 95 or 110 TTSX are too light for whitetail. I want to push at least a 130 grain bullet. Just my opinion.
Marksman66: I thoroughly clean the barrel after each trip to the range (20 to 30 rounds). I shoot 4 to 6 fouling rounds before shooting groups: yes it takes that many fouling rounds before they settle down. I use Boretech carbon and copper remover until there is no black or very much blue (copper) on the patches. Yes it is a wood stock, but there is plenty of free space between the barrel and the stock. Yes, bedding is one thing I may have to do.