Attached is a target I shot this afternoon using the Hornady 250 gr SST and 100gr of T7. 110 gr of T7 wouldn't group at all.

I can't understand why two shots are high and two are low.
I swabbed the barrel the same way after each shot.

2-split patch (H2O)
1-dry patch

I think I'll weigh the powder for the next round. I believe the volume 100 gr of T7 weighs about 70 grains.