Goex FFFFg (or 4Fg) is suited for Priming Powder for Flintlocks. While Goex has improved manufacturing processes and material quality, they have manufactured black powder using traditional materials to provide the same great ignition characteristics and uniform speed that master shooters and hunters have relied on for over 200 years. Goex Black Powder is available in different granular sizes to tailor performance to a specific firearm. From FFFFg (smallest) to Cannon (largest), Goex has a granulation size for your firearm.
Warnings from the Manufacturer:
- Do not exceed the loads displayed in the reloaders guide.
- Never mix any two powders regardless of type, brand, or source.
- Never substitute any smokeless powder for Black Powder or any Black Powder substitute.




Graham –
Real black powder stores indefinitely if kept sealed and dry. Stashed this canister inside my wood-lined storage magazine box. Opened it up after a year and it performed exactly like a freshly manufactured batch.
Jasper Finley –
Our historic fort platoon uses this exclusively for priming our flintlock muskets during public demonstrations. It creates a crisp, satisfying flash and puff of white smoke that always delights the crowd while staying completely period-accurate.
Emmett Charles –
Living out on the coast means dealing with heavy fog and salt air at the outdoor range. Goex’s graphite coating does a fantastic job of preventing the fine powder from absorbing atmospheric moisture while waiting for a shot.
Grant F. –
Switched to Goex FFFFg after dealing with constant hangfires from an inferior brand. The difference was night and day. If you want your traditional flintlock to run as reliably as a modern rifle, this is the secret.
Jude –
Goex has been the benchmark for generations for a reason. The lot-to-lot consistency of this super fine powder is immaculate. When competing in vintage rifle matches, knowing my priming speed is identical on every shot is critical.