The guy at the local ML store recomended I give it a try today. I have read the good and the bad about it on customer reveiws. He was saying to use it like you use black powder but keep in mind that it is about 5% more versus 15% more like 777. he also said to not use bullet lube with conical because the whiteresidue left behind from the powder will lube the barrel sufficiently.
I'll be shooting it out of my triumph, and pushing a 350g to 370g T/C maxi hunter with it with 777, winchester or remington primers.
If I were going to shoot maxiball I would use Triple Seven or Pyrodex Rs but if you want to try JSG then by all means try it. I have NEVER shot it. I shot a lot of APP and while it works good, it did not work well with conicals.
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If you read the reviews on it then you pretty much have the story. It's suppose to be a pretty clean burning powder but it's still hygroscopic like the rest of them. The only powder on the market that isn't hygroscopic is Blackhorn 209. It's also non-corrosive and doesn't required swabbing in between shot. Although I don't think the APSG needs swabbing between shots either.
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Have used JSG in the past. Still have some in my junk room. My longest muzzleloader shot was with JSG-a hog at ameasured 192 yards. Never tried JSG with conicals so i have no idea about that. JSG likes a tight fitting sabot that is seated very hard on the powder. You can feel it compress.
I havesomewhat limited experience with one canister of Jim Shockey's Gold FFG powder in my Mustang. I found it to be pretty accurate and clean burning, but yielded low velocities. For example:
385 grain Great Plains bullet.
90 grains volume of JSG FFG - 1018 fps (5 shot average)
90 grains volume of Pyrodex RS - 1144 fps (5 shot average)
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I used a whole bottle of it and never misfired,it does leave the white residue behind which you will find
during cleaning.Buy the loose powder form not pellets,some of the pellets are bigger than others,
and do not slide down the barrel without a push.It does shoot clean, everything i've tried seems to work with them.
I havesomewhat limited experience with one canister of Jim Shockey's Gold FFG powder in my Mustang. I found it to be pretty accurate and clean burning, but yielded low velocities. For example:
Yes I'll be shooting only conical (we can use anything else for blackpowder seasons in Colorado). I have tried the RS and it is VERY dirty to shoot out of the triumph. The Select shoots very good groups and is a little dirty compared to 777. the last load I was useing was 85g of Select with a button patch on the end of a T/C Maxi-ball and the same load with a Maxi-hunter and both shot well.
But I you say the JSP shoots at lower velocitys that might be good for the conical, it seems as though if you slow down a conical the grouping stays tighter
I use it for about 2 years, finally gave up on it it is very humid on the downwind side of Greers Fairy Lake where I live. In order to get it to group decent I had to keep it set up with a dehumidifier set up and even then it gave me a lot of trouble. I now use either Black Pyrodex or Blackhorn.
Black in a flinter
Pyrodex in my Triditionals and pistols
Blackhorn in my inlines
This is working well for me
Lee
Tell me about Jim Shockey powder please.
