I have no idea how well it shoots. But this observation. My Brother in Law experimented with Pyrodex back when it was relatively a new product. We shot together. Me Shooting real black Duplex loaded. He shooting Pyrodex. As the day went on his rifle started shooting better, no cleaning or wiping between shots. My rifle needed occasional cleaning. Both were 38-55 Hiwalls, we both used the same bullet and Lube, Mine was Pope
his was a standard Hiwall #4 barrel. After shooting we gave both rifles a cleaning with Hoppes #9 and left the Bore wet.
When we went home I took his Rifle as he wanted me to do some work on it. This all on a Sunday. On Wednesday I decided to check my Pope. It was OK so I just gave it  fresh wipe with a Damp Hoppes Patch. When I checked his rifle I was horrified. Looked like the inside of Sewer pipe, nasty fouling Rifling, was not visible. Quickly wiped it out and oiled the Bore. I went over to see him and told him. I asked him about the Brass, had he cleaned it? he said no I forgot to.
We dug it out and it was horribly corroded. The corrosion had come right through the side wall of the cases. So, I had 3 cans of that stuff and never fired it, a few years later a Muzzle loader
friend asked me about Pyrodex and I told him the story. Well he still wanted tot try it so I gave him the 3 Cans with repeated warnings about cleaning. He used it all up and liked it but he did say he cleaned thoroughly. SO that's what I think about Pyrodex. It  shall never see the inside of one of my Rifles. 
HTH Regards, FITZ-G

I have used it in my muzzleloaders for many years. No problems if you clean it and re check it in a day or so. Not any worse than Black Powder in my opinion. Been using Tripple Seven since it came out. I find it to be less corossive than the original Pyrodex but you still have to clean it. Have waited til the next day with Pyrodex and no problem. Used some in my .45 Colt Ruger revolver with no issues if cleaned properly. Use black Powder in  a revolver and don't clean it and you will have a disaster.

Pyrodex gets a bad rap when it comes to cleaning. No one would leave their firearm or brass after shooting with black powder but somehow think Pyrodex should be harmless to steel or brass. Clean after shooting with it and you'll have no problems.
Pyrodex is certainly accurate. I spent considerable time shooting straight black, duplex and Pyrodex. In my 38-50 (Rem) Cody-Ballard with Krieger ML barrel my best groups with Pyrodex were approximately 1 MOA (plus/minus .1 inch) for 10 shots at 200 yards, shot off a double rest. Groups were shot dirty, muzzle loaded with 1/16 inch gap between bullet base and case mouth (gap filled with felt wad). Bullets pan lubed with SPG. Sight was 20X Lyman Super TargetSpot. 
Pyrodex equaled my best straight black and duplex loads for 10 shots at 200 yds.

Use black powder.  Order some or find a local supplier.


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I have BP i'll most likely ever use.

Frank,
At PowderInc, they do not have my favorite Swiss 1.5 
But they do have Old Eynsford 1.5 in stock. Its said to be very good, too.
beltfed/arnie

Grafs has a pretty good selection of black in stock.