If you’re into black powder firearms or traditional muzzleloading, you’ve probably come across the name Goex. Among their line of black powders, Goex FFFFG (commonly called 4F) tends to raise a few eyebrows, especially for newcomers trying to figure out where it fits into the picture. Is it just for priming? Can you actually use it to fire small-caliber weapons? Does it offer anything special over its more commonly used siblings like FFFG (3F) or FFg (2F)?

In this article, we’re doing a deep dive into Goex FFFFG black powder. We’ll talk about what it is, how it performs, when you should use it, and what users typically say about it. If you’re trying to figure out whether this ultra-fine black powder has a place in your setup, this review should give you a clear idea.

What Is Goex FFFFG Black Powder?

Goex FFFFG is a very fine grade of traditional black powder, often referred to as 4F. The grading system used with black powder generally corresponds to the coarseness of the granules: Fg being the coarsest and FFFFG being the finest. That extra “F” in 4F? It matters a lot more than you might think.

Here’s what the grading looks like:

Grade	Typical Use	Granulation Size
Fg	Cannons and very large bores	Coarse
FFg	Rifles .50 caliber and up	Medium-coarse
FFFg	Pistols and smaller rifles	Medium-fine
FFFFg	Priming flintlocks	Extra fine (Goex FFFFG)

So, Goex FFFFG black powder is the finest granulation available in their line. Because it burns incredibly fast, it’s traditionally used in the priming pan of flintlock firearms—essentially the part that ignites the main charge in the barrel.

But over the years, some shooters have experimented with it in other applications, and that’s where the discussion gets interesting.

How Goex FFFFG Black Powder Performs

Let’s break down the experience of using Goex FFFFG powder in various scenarios. From ease of use to ignition reliability and burn speed, here are the highs and lows.

Pros of Goex FFFFG

• Fast Ignition: This is the gold standard for flintlock priming. If you want a quick, reliable flash in the pan, this powder does the job with minimal delay.
• Reliable Flame Carry: It creates a bright, fast flash that easily travels through the touch hole to ignite the main charge—especially useful when you’re shooting in humid or inconsistent conditions.
• Great for Small Calibers: Some users load it in .31 or .36 caliber pistols or very small bore rifles. Because it burns so fast and cleanly, it can be effective in these specific cases, though not typically recommended for standard use.
• Consistent Granule Size: Goex is known for quality control, and the FFFFG granulation is no exception. It’s consistently fine, which matters a lot when it comes to predictable ignition.

Cons of Goex FFFFG

• Not for General Use: You can’t (or shouldn’t) use 4F powder as a substitute for 2F or 3F in larger caliber guns. It burns too fast and can raise pressures to dangerous levels.
• Volatility: Because it’s so fine, it’s more volatile than coarser powders. You need to handle it carefully and store it responsibly.
• Dusty and Messy: This stuff is like talcum powder. It gets everywhere if you’re not careful, and it’s a pain to clean up.
• Limited Usage: Outside of flintlock priming or niche small-caliber use, you probably won’t get much mileage out of it.

Best Uses for Goex FFFFG: A Practical List

If you’re wondering whether Goex FFFFG has a place on your reloading bench or in your shooting kit, here are the main ways people actually use it:

Priming Flintlocks

This is its main job. You load a small amount into the priming pan of a flintlock rifle or pistol. When the flint strikes the frizzen, the resulting spark hits this fine powder and ignites it quickly. That ignition travels through the touch hole and sets off the main charge inside the barrel.

Testing Small-Caliber Loads

A few folks experimenting with ultra-light loads in .31 or .36 caliber revolvers have reported using tiny amounts of FFFFG with success. However, this is strictly an experimental practice and not officially recommended due to pressure risks.

Creating Pyrotechnics or Model Rocket Engines

This is not a standard firearms use, but because of its fast-burning properties, Goex FFFFG is sometimes used in controlled experimental pyrotechnic settings. It’s not something you should try without serious knowledge and safety measures.

Reloading for Historical Replicas

If you’re working with a historically accurate flintlock setup, there’s something to be said for using traditional materials in a traditional way. Goex FFFFG keeps you close to the real thing in terms of authenticity.

Quick Reload Demonstrations

Some black powder enthusiasts who perform live demonstrations prefer Goex FFFFG for priming because of its dependability. If you’re shooting in front of a crowd or participating in a reenactment, reliability is crucial, and 4F delivers.

FAQs

Is Goex FFFFG safe to use as a main charge?

Generally, no. It’s too fine and burns too quickly to be used safely in place of FFG or FFFG for most guns. The pressure spike could damage your firearm or worse. It should be reserved for priming or experimental use in very small calibers under expert guidance.

How should Goex FFFFG be stored?

Like all black powders, Goex FFFFG should be stored in a cool, dry place in an approved container. Avoid sparks, open flames, or static discharge. Even though it’s stable under normal conditions, it’s more volatile than coarser grades.

Can Goex FFFFG be used in percussion caps or cartridges?

Not typically. Percussion caps are pre-made and don’t require loose priming powder. Cartridges that require a main powder charge should be filled with FFG or FFFG. The fine nature of FFFFG makes it unsuitable for cartridge-based shooting.

Does Goex still manufacture FFFFG after their plant closure?

As of now, Goex is back in limited production under new ownership. After a brief shutdown in 2021, the plant was acquired and is gradually ramping back up. FFFFG is still being produced, although availability may vary based on demand and production schedules.

What’s the shelf life of Goex FFFFG powder?

If stored properly—dry and in original containers—Goex FFFFG can last for many years. There are reports of black powder lasting decades when unopened and kept away from moisture. Once opened, be sure to reseal it tightly.

Conclusion

Goex FFFFG black powder is a highly specialized product with a specific job: priming flintlocks. While some experienced shooters dabble with it in small-caliber pistols or unique load-outs, that’s really not where it shines. Its fast, hot ignition and ultra-fine granulation make it perfect for giving flintlocks that quick, dependable spark that makes or breaks a shot.

This isn’t a product every black powder shooter needs, but if you’re running a traditional flintlock or involved in reenactments, it’s an essential. Like any black powder, it demands respect and careful handling, but when used for its intended purpose, Goex FFFFG performs exceptionally well.

In a world of niche shooting gear, Goex FFFFG black powder earns its place—not as an everyday powder, but as a reliable specialist. It may not have the broad versatility of its 2F or 3F siblings, but what it does, it does extremely well.