RE: Triumph- Shots Tend to Rise
Climbing shots can be caused by a number of reasons.. Barrels can heat up. You can be changing the hold of the rifle as you shoot, because as you come down from shooting the last shot, you can relax or tense. Swabbing the barrel is important. Were you swabbing between shots and using a dry patch.
It might like just a little different powder load. Kick the charge up ten grains and see what happens. It might like a different sabot. If the sabots are loading real loose, then try a different sabot.
All you can do is try different things. I would start with kicking the powder charge a little and making sure I swab the barrel real good. See if that helps.