RE: crud ring
You could try using the loose 777 and/or a weaker primer. If you can find some 209-4 primers as used on 410 shotshells, some have had luck combating the crud ring that way. I have not had any problems with it myself and can load 8 to 10 powerbelts with out swabbing but accuracy is better if I swab. Using 250gr shockwaves I can shoot 6 or 7 without swabbing and still get good accuracy, after that I have to brush out the plastic fouling. Unlike some on this forum, I do notswab withalcohol or such before loading to shoot, just a few dry patches to get the majority of the lube out of the barrel, then pop a 209 or two and load as normal. Never had a problem with ignition and I have no crud ring. I also use automotive type antiseize on the breach plug and can shoot 777 all day and not have to loosen the breach plug till I'm ready to clean the gun at home, comes out with little more than finger pressure. If your gun is new, you will probably find that it gets better the more you shoot it, mine has 3 to 4 hundred rounds under its belt and I think it shoots better now than ever. Good luck and keep us posted.