Difference between ffg and fffg
03-11-2005, 07:28 PM
#2
Dominant Buck
Join Date: Feb 2003
Location: Wisconsin
Posts: 21,193
RE: Difference between ffg and fffg
It will work just fine. It is a smaller grain size then the FFg and it is reported it burns cleaner then FFg. All I can get in my area is Triple Se7en FFg other wise I would be using what you have....
03-12-2005, 02:59 AM
#4
Nontypical Buck
Join Date: Jun 2004
Location: A flat lander lost in the mountains of Northern,AZ
Posts: 3,171
RE: Difference between ffg and fffg
fffg may be cleaner then ffg, but you should keep in mind the smaller granules of fffg will burn hotter and faster. I would not use fffg if you plan to use magnum charges.
03-12-2005, 09:28 AM
#6
Nontypical Buck
Join Date: Jul 2003
Posts: 2,922
RE: Difference between ffg and fffg
fffg may be cleaner then ffg, but you should keep in mind the smaller granules of fffg will burn hotter and faster. I would not use fffg if you plan to use magnum charges.
One rule of thumb I read said to use FF in .50 cal or better and FFF in .45 or less.
The thread-starter here states he uses 777 and none of-the-above applies to it.
There's very little difference in bore pressures between 777 FF and FFF.... sometimes none dependent on bore diameter/bullet grain/bullet diamerter. A reduction of only 5-10 grains for 'magnum" powder charges .... ie.. 115-120... is all that's necessary (on average).
Many shooters nowadays use 777 FFF in big-bores like 58-calibers. In my own 58, I found 75 gr FFF shot the same as 80 gr FF with no spikes in pressures.
