Put the snake back in the wife's garden &get a bore brush for swabbing & cleaning. I use two ramrods at the range. One has a jag for loading the bullet -- the other has a bore brush for swabbing. Swab after every 2nd shot. Use both sides of a wet Windex patch - then both sides of a dry patch.

Always usemild solutions like Windex or alcoholfor swabbing -- then use solvents that say they remove copper& plastic for cleaning.

Go back to 50 yards.Shoot once every five minutes in this hot weather. If things tighten back up, then go to 100 yards. If groups don't close, try another plastic sabot (50-pks)... anothersabot/bullet or another powder. If you try another powder, start with 70 grains& work up in 5-grain increments until groups spread. Don't be surprised if your best groups are around 85 grains. That's enough energy in that loadto kill deer out to 150 yards.