Good to see another marksman on here! Couple of questions for you @evoman, keep in mind I'm not a bench shooter.
Why go for such a light round and low twist? I'm guessing the column target needs a 1:14. Is the recoil reduction that significant over a heavier higher BC bullet?
Those rounds are really sticking out of that case. Do you seat them so that the round is pressed on the lands and grooves?
What muzzle velocity are you pushing? Deviation?
Great work, keep sharing!
-Kev
RE: The Thrill Of Marksmanship And The Elusive One Hole 5 Shot Group