i read that Three hawks and about fell out of my chair
i think what happened was Peter was miss proofed by the editor
Now im going from memory but If I recall correctly , even thought the 1930 date seems kinda late .
Anyway the point is , I think peter was trying to say there was no 3F because there was no grading system calling different sizes . 1 F , 2F. 3F
See today we use a screen system to size . However historically , that wasn’t the case . In their process powder were produced all the way up to what we would call today 10F or photography powder . This very very fine grade was used a lot in the late 19th century in flash trays .
So how did they get different sized powder .
Whelp as I understand it by sedimentation caused by vibration .
I think it was Pope who profiled this in a chapter of one of his table top books which included period diary accounts and such to support his findings .
Basically when the powder back then was ground , it wasn’t then screened as we do today . So
what would happen was that once the powder was barreled up , it was loaded into wagons for delivery . Prior to leaving the powder kegs were marked on all the tops ..
As the wagons bumped and jumped down the road , the vibration transferred into the keg/ barrels thus making the bigger grains come to the top . Separating the powder into cannon , musket and rifle powders
The kegs would then be opened accordingly as to intended use .
So in reality the rifle powder was a mix of everything from very fine to course powder .
I also believe peter was trying to get across that there is basically 0 documentation for a priming horn in and of itself when used in context for a rifleman .
As such when a rifleman loaded a pan from the main horn . What was in the pan , wouldn’t have been all the size of 2F or 3F but a mix of fin and course powder
Later in the late 18th century and early 19th century , powder was put in smaller kegs as well a lead canisters but for easy of transportation and distribution.
now we can suport this becouse every now and then old cashes of suplies are found here in the west , dating to the early western fur trade . the powders in those cashes from those i have talked to who have found them , say the powder is a mix of what apears to be 4-2 F
So were there smaller sizes of powder,,,,,, yep .
But was it call 3 or 4 F nope