I shot an original Sendero in the 300 UM in the 1000 yd BR stock class.
190 moly plated SMK's hard into the lands, 215's, and a full case (don't ask)of Retumbo at just under 3300. Set the range record of a 4" and change.
You're doing all the other stuff, try into the lands, with a square mark on the bullet. Lighten the trigger. Is it bedded? Free floated? How's the crown? How's your bench technique? Loaded round runout? Big flinch, little flinch? Scope, ring, mount issues? Good bench? Good front rest and rear bag set-up? Consistant hold? Tough to do on the bigger boomers.
There's a bunch of things that add up to small groups.
Sad truth, maybe the gun's not up to the task.....
The gun comes bedded, floated and crowned from the factory.
Topped with a Leupold 8.5x25x50mmx30mm tube.
Yes, solid front and rear bag setup.
Flinch, IMO, seems minor but could add half MOA.
Anyone know any good gunsmiths that could lighten the trigger and square the bolt face and whatever else could be done to a factory setup?
