Had a Stiller, 6BR 8 Twist, Rem Varm contour 24 round, shot the first 3 in 1/4" at 200 yds every group, using 66 and 105s, it was a bughole. Oh, used Talley aluminum lightweight mounts, same on a Borden Alpine, 260 Rem Mag contour, 23" 8 twist, shot under 1/2" for 3 at 200 yds.......

Use good parts, good smith, and they will all shoot.