Re: New barrel with a conical twist
What do you mean by LRH Some of the fake powders don;t compress evenly from shot to shot and give different inconsistent ignition speeds and pressure curves.
Increasing the powder in such a short barrel, often just means more recoil and resulting flinch.
If it is a flintlock, ditch the powder and get real black.
Conicals are very finicky about barrel fit and fouling.
Without watching you load and shoot, there is not much more to suggest.