Originally Posted By: dennydI vote copper fouled barrel, you need some kind of copper remover, not just carb cleaner, i like to use Flitz polish, no lie this stuff works great, keep running it through the barrel till a patch comes out clean, your not 51 rounds from a clean barrel, your 500 rounds into a dirty barrel.
Hmmm...
I read he used Shooters choice, Wipe-out, bronze brush, and carbcleaner.