Contender .45-70 14"bbl w/factory brake topped w/Matchdot.
Ammo is Hornady Leverevolution 325gr at 25 yards. (I know it's not that far but it's a start)
I bore sighted this in my kitchen by sighting through the barrel and then moving the dot to the top of the view through the barrel.
This is the group it shot after the bore sight. I haven't made any adjustments yet.
Next session I'll bring it to center then move back to 50yds
Jeff
PS: almost forgot to mention, this is 5 rounds.