RTI .25 Mora and it’s first range trip

Oh, please accept my apology. I looked at the OP's post and saw that the targets were shot at 100 yards. For some reason, I thought it was 50. My bad:confused:
At 50Y it shoots one ragged hole. I am trying to tune this rifle for 100Y. I have not shot it for accuracy (score) yet, only groups for now, working on only a tune.
 
I got the shroud end cap off today. Heated it with a heat gun, inserted two punches, in opposing holes and the cap unscrewed VERY hard. There was no LocTite on the threads.

While I had the barrel off, I pushed a pellet through it and found a tight spot where the rear shroud end was clamped to the barrel. I loosened the clamp bolts, pushed another pellet through and there was still a tight spot. I was able to polish the tight spot out. Then I torqued the clamp down to 10” pounds. Pushed another pellet through and it was nice and smooth.
 
I got the shroud end cap off today. Heated it with a heat gun, inserted two punches, in opposing holes and the cap unscrewed VERY hard. There was no LocTite on the threads.

While I had the barrel off, I pushed a pellet through it and found a tight spot where the rear shroud end was clamped to the barrel. I loosened the clamp bolts, pushed another pellet through and there was still a tight spot. I was able to polish the tight spot out. Then I torqued the clamp down to 10” pounds. Pushed another pellet through and it was nice and smooth.
Glad you got it off. I need to try mine at some point.
 
I got the shroud end cap off today. Heated it with a heat gun, inserted two punches, in opposing holes and the cap unscrewed VERY hard. There was no LocTite on the threads.

While I had the barrel off, I pushed a pellet through it and found a tight spot where the rear shroud end was clamped to the barrel. I loosened the clamp bolts, pushed another pellet through and there was still a tight spot. I was able to polish the tight spot out. Then I torqued the clamp down to 10” pounds. Pushed another pellet through and it was nice and smooth.
So the heat didn’t really do anything and the solution was more force? Or did the heat help anyway?
 
I do not think heat really helped although i was not able to get it to budge before without heat, so??? I had two punches, stuck in opposing holes in the end cap, then twisted as hard as I could and the cap finally began to move. It was EXTREMELY tight and I am not sure why it needed to be that tight?
Ok, thanks! Will give it a try with a little more force then and put heat to it as well if that doesn’t work just for the psychological factor I guess :)