Re: Shoots Better Dirty???
I would think it would depend on the state of your barrel when you worked your load up. If you work your load up using a clean but slightly fouled barrel that is where it should shoot would be my estimation. If your barrel was fouled well when you found that magic combo seems like dirty would be better. That said, I often shoot 30 or 40 rounds at BR matches w/o cleaning and never clean at f-class matches where I shoot 60 plus rounds. I would guess that 5 foulers would be the magic number for most of my rifles to really settle down, but have one kreiger that will shoot well after one shot to rid the barrel of any cleaning residue.
I admit that I know just enough to be dangerous.....but dangerous at ever extending distances.