Re: Powder residue entire length of case....help
Bullet Bumper, I agree, this could also contribute to the cause. More neck tension - more pressure.
I believe the problem was due to low pressure. We could add neck tension, increase overall length, but I elected to increase powder charge. Today I shot 3 loads at 51gr of R22 and the powder residue was contained to the neck area only! I will not shoot more of these loads until I get a chrono to shoot across. I feel there are too many variable at play and fps is a critical piece of the puzzle that is missing.
Thanks to everyone who contributed. I MAY post my final findings but I'm sure it will be a long time down the road as I want to do this right and.......did I mention the 270WSM/300WM/22-250/223.......!