fffg is smaller granules in size then ffg. FFg is for large rifles, FFFg is for pistols and smaller caliber rifles.
__________________
"Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, a total wreck, screaming Yahoo, with a big smile on your face."
__________________ PLEASE NOTE THAT DUE TO THE RISING COST IN AMMO PRICES I WILL NO LONGER BE FIRING A WARNING SHOT.
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As stated it's the size of the granules.
I might also mention I pronounce it ffug or fffug. Often when a shot goes out of the group my first thought is of the powder granulation and I will mutter fffug!
One time about9 or10 years ago, one of my brother-in-laws came down to W. Yellowstone to elk hunt with me. He forgot his rifle. So, being the good guy I am, I loaned him my .300 win mag and pulled my ML out of the moth balls from back in good old Illinois.
So, I was shooting a .50 cal hawken type with 350 gr. TC maxiballs. I hadn't even looked at my powder in a couple of years since I had moved up from Oregon, so I pulled it all out and went out to "test-fire" prior to our elk hunt.
I set up a target along the logging road (on the way to our hunt loc.), and fired one shot at50 yards, at a paper plate stapled to a tree. The wind was howling so bad and I hadn't shot in a couple of years, that when I pulled the trigger I not only jerked it, but bucked at the recoil as well. Needless to say you could still eat off that plate without any leaks.
I hit the plate nearly dead center on the second shot, and called it good, unfortunately for me I didn't see an elk within 50 yds that day.
Yeah, I know man. He just made Major in the US army two weeks ago, and we went to the ceremony in Livingston, Montana. He's a very professional guy, my brother-in-law, served in Bosnia, Iraq and is getting ready to deploy back to Iraq.
You would think a mistake like that would be out of the question, but hey, he was only a leiutenant then. About the time he made captain, he did remember his rifle on an elk hunt, and ended up shooting a hole in the floor board of his new Chevy truck. Blasted the p--- out of his catalytic converter, and we had toduct tape it so the fumes didn't kill im' on the way back to Bozeman.
Anyway, when he made major, his Colonel asked me for some dirt on him. I told the guy about him shooting a hole in his truck... dude, I thought he was going to scream right out of formation and duke my --s, but he held it until the end. I got a little retribution later though....