03-17-2020, 05:58 PM
Powder is burnt in the first 3 to 5 inches of barrel, if not our gas blocks would get clogged with powder after very few shots.
16 or less inches works good with a pencil profile, just don't get it hot are it will start to drift.
16 or less inches works good with a pencil profile, just don't get it hot are it will start to drift.

