Hello! I think I've resolved the issue when 209 primers blank ammo jammed the cylinder. I just added 3mm ID restrictions to the chambers out channels, and the magic was done. Now the cap still pushed out of the primer body, but then the gas pushes the case rear as well, making a gap between the case and the cylinder. The gap is very small, I can't feel free play on cylinder, but is enough to rotate the cylinder free. Carbonization on the case confirms that :)
