Here is how to measure it correctly and safely.
Volume, Not Weight
Muzzleloader charges are traditionally listed in grains by volume, meaning the volume that the same weight of black powder would fill. Blackhorn 209 is meant to be measured the same way. Because it is lighter, a volume charge of Blackhorn 209 weighs noticeably less on a scale. Never convert a volume charge into the same number of grains by weight.
How to Measure It
- Use an adjustable black powder measure set to the charge from the load data.
- Pour powder into the measure from the can or a flask, never directly into the barrel.
- Tap the measure lightly for a consistent fill and level it off.
- Pour the charge down the barrel.
For faster loading in the field, many shooters pre-measure charges into speed loader tubes at home.
Safety Rules
- Use only in guns designed for it, generally inline muzzleloaders with 209 primer ignition. Check your gun maker’s guidance.
- Follow Western Powders’ load data and maximum charge guidance for your gun.
- Never pour from the can into the barrel.
- Never use smokeless powder in a muzzleloader unless the gun is specifically designed and marked for it.
- Store powder in its original container, away from heat and flame.
Related Guides
Frequently Asked Questions
Is Blackhorn 209 measured by weight or volume?
By volume, using a black powder measure and the maker’s load data.
Can I use Blackhorn 209 in a sidelock?
It is designed for guns with hot 209 primer ignition. Check the powder maker’s and gun maker’s guidance first.
Does Blackhorn 209 need cleaning between shots?
It is cleaner burning than black powder, but always clean your gun after shooting.
New to reloading? Start with our Reloading for Beginners guide →