I ran a few 100yd groups down the bore of the Pro Hunter w/ .50 Encore Bergara barrel today. I used one of Ron's homemade Grade 8 breech plugs with Lehigh vent liner, V1 plug. Charge was 110gr BH209 and ignition was Fed209A's. With a #60 o-ring in the primer pocket the Fed's come out clean. Zero hangfires or misfires. I was in a hurry and did not let the barrel cool too much between shots today. These are definitely two accurate bullets.