My favorite load is Solo 1000 with Claybuster Lightening wads in either a Rem. or AA hull and either Win. or Rem. primers. You can get the recipie from the makers of Solo 1000 or Claybuster wads. Yes, I have also roll crimped or I have used the Hartin crimp. Pressures though will be in the low 6000's. I have yet to have a blooper with these componets. All my loads are either 1oz. or sometimes 7/8oz.