Mini MK X barrel?

[LRRPF52]

A buddy of mine had CZ's custom shop barrel a CZ527 with a Douglas 22" Select Match Stainless barrel chambered in 6.5 Grendel for him. He runs the 139gr Scenar at 2650-2700fps on top of N140 I think. He reports .25" groups with that load at 100yds. Even with a 1/9 twist though, you're still good with the 139/140 long bearing surface pills as long as they are at a decent speed. You could go 1/8.5" or 1/8", but if you're planning on mostly shooting 120gr, 1/9 is great. I wouldn't write off the 140gr and even higher, like the most excellent 156gr Norma Oryx, which is an awesome bullet on game.

The 129gr SST seems perfect for the bolt-gun Grendel, as does the 130gr Scirocco. You practically have a 6.5 Swede with way less powder.