I have played with KRG, McMillan Game Hunter, Grayboe Terrain, Bell and Carlson, and of course the factory. The KRG are great, but heavy. Game Hunter is a great stock especially when paired with a proof of large diameter barrel. Bell and Carlson is very similar in feel to the Sako A7...
I put a proof prefit in 6.5 PRC on a Tikka 300 WSM. Install was simple, no issues pulling the old barrel. New barrel shoots awesome and love the feel. As others have said the long bolt stop and 7mag magazine is perfect and makes the switch less costly. I have a KRG on a T1x and they are...
I put one on a T1x and I love the vertical grip. Made it easier to shoot even over the factory stock with the grip and forearm swapped out. However, does add weight, but for my purposes that was a good thing
The nice thing with the WSM is you can always switch the bolt stop and Mag and have tons of OAL to work with. Not the same story on the 270 win. But always thought to beat the 270 win