Almost six months ago, I mounted an old Bausch & Lomb scope and attempted to zero it in on the T/C Encore with a .17 HMR barrel. The reticle ran out of elevation about 3″ high from the POI at 100 yards. I just took a Diet Pepsi can, cut it up and finally made some shims. The aluminum can measured at .002″. I want to move the reticle down at least 4″. According to this guide, I should be able to get it zero’d properly by taking two aluminum sheets and place them under the scope; inside the rings. I’m using dovetail rings from Leupold and a T/C base. I should bring a few extra shims along my next shooting trip – just in case.
I also noticed that I haven’t cleaned out the barrel… I did that too. Maybe that’s why I was getting those erratic shots during my last shoot..
I’ve had problems with TC encore barrels running out of adjustment on the irons, but once optics are mounted I’ve never run into this. I’m interested to see how the shimming works out.
I’ll be sure to update you if it makes a difference. I’m skeptical that .004″ will do much, but we’ll see!