7F powder granulation

[roundball]

Fort Green Ville...

I assume you would use 7F for priming...I use 4F all the time...have heard about 7F but never tried any.

Wondered if you'd shot any yet and if you could tell any difference between ignition speed of 7F vs. 4F ?

Also, I assume it would be even more victimized by humidity than 4F is?

 

[loishd]

roundball,
Yes I and some of the other members in my club use 7Fg.
In fact I just purchased a 25# keg (plastic bag in a box) :crackup: this spring a Friendship. Of that 25# I only have six pound left to sell.
Whether you are a flinter or a nipple shooter I fell everyone should have a can or partial can of 7Fg. As range officer for my club (4 yrs and running) it is a must. For those whom forget to powder prior to patch and ball, a little 7 thru the nipple or drum screw and BINGO ball is dischargered. We also use C02 but as you may know one has to wipe and clean due to the moisture left.
As for flinters (ie myself) 7 in my use ignites much easier than 4. I'm planning on 1/3rd 7Fg to 2/3rd 4Fg mixture mainly for hunting. My assistant rnge office and older club member swears that 7Fg will actually ignite when slightly damp where as 4Fg tends to turn to goo. That is why I use it for hunting Never can know when Mother Nature will turn against ya! :hmm:
The biggest problem is getting 7Fg. Seems as if the ATF has some issues with transporting bulk 7Fg. As we discussed in the other thread 7Fg will ignite very easily!!!
The nice thing is 7Fg goes a long long way. One pound does most for several years. In fact my mixture above may be too strong on the 7Fg but I do have two pounds of the stuff anyway.
One last note you cannot purchase 7Fg in a can it must come from a bulk dealer. We bought the whole keg and carefully divided it into old empty Goex cans.

 

[Jon in MI]

You can get Swiss powder in a granulation called Null-B I'm told it is 7F. It is very fine, like flour and goes off very easy. I haven

 

[roundball]

If my Goex 4F was any faster I couldn't stand it...already seems like a single event...maybe one day I'll get a chance to try some 7F.

PS: I swear I thought I saw a 1Lb can of 7F somewhere...

 

[RJR]

Where is it you found Null-B in Michigan? Haven't seen or heard of any being around. How much is it a pound?

Thanks, Rick

 

[Wart]

I purchased some 7f from an Ohio trader after hearing how fast it is compared to 4f.
Well, I tried it a few times ... ended up giving it away as the humid weather of Ohio seemed to turn it to sludge.
Save yourself some headaches and money - stick with the 4f

:m2c:

 

[Jon in MI]

Deaddawg, I bought it at Kenockee Tradin Post. Not sure if it's a regular stock item or if they got it just for me. I asked about it and the next time I went in to buy powder they had it. It's not cheap, I think I paid $28 for a pound. Should last a long time, I use very little per shot. The thing I like about Null-B and the 4F swiss is even in humid weather the pan of my flinter doesn't get all gooped up like it did with Goex 4F. It stays almost dry, it must burn very hot.

Jon

 

[musketman]

I thought FFFFFFFg was a flash powder for replica cameras that have the external powder flash for lighting the image...

May even be used in the fireworks industry...

 

[Jon in MI]

That is what I was told. They also said it is used in Europe in competition shooting for fast ignition times. They warned against hunting with it, as it is very hydroscopic. For me that hasn

 

[loishd]

It is my understanding that 7Fg is used to make cannon fuse. Wrapping with some type of wick paper.