I normally shoot AA 8.44 Dieablo Field in my TX200 of the bench at 25 yards. Normally groups, 5 shoots are inside a dime , often a small dime. I had some Premiers from an old squirrel piston rifle and out of curiosity tried them in the TX. First 5 shots all cut and made a round ragged hole. I thought wow. From there it was downhill. Ended up shooting quarter size groups. The AA pellets feel like they have some type of coating or lube on them. I am wondering if the Premiers shot well until the ran the lube off the bore? I may try lubing some although I have never down that. Has anyone else experienced this with the Premiers?