Got my first experience with it today! I ran out of BH209 so i loaded up speed loaders with 100gr American Pioneer 2f and headed out with the 250gr Powerbelt Aerolite to sight in the Konuspro 275 scope.

First thing i noticed, ZERO crud ring with the BH209 plug and Winchester W209 primers! I mean NO crud at all. Super easy loading. I pulled the plug and the rifling was all clean as well with no signs of baked on residue.

What gives?!! The original flat face QRBP gives me a bad crud ring with American Pioneer.