I’m having trouble controlling the size of groups.>>>>>>>>>>>
What size are your groups at 100 yards?
It could be your barrel. Or your ammo.
But then if you alter the trigger you might mistakenly have a fully automatic weapon....Oooooops! :-)
Gun control . The steady hand! :-)
I’m getting about 1-1/2 to 2” groups @100yds. Possible trigger candidates are JP Enterprises, Timney, Rock River, Velocity, POF, Geisselle, etc.I’m leaning towards the JP that costs about $115 but requires a minimum of smithing.