What’s the Difference between FG and FFFFG Blackpowder?
https://www.ilovemuzzleloading.com/blog/whats-the-difference-between-fg-and-ffffg-blackpowder-everything-blackpowder-explains
WEBApr 21, 2023 · 1Fg is for canons and large bore military muskets. 2Fg is for .50+ Caliber muzzleloaders. 3Fg is for .50- Caliber muzzleloaders. 4Fg is for flintlock pan priming. There are of course, exceptions. For many years, blackpowder wasn’t as refined as it is today.
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