This is simply a quick report on this little popgun. I read about it and it just grabbed my attention. So I'm out $130 some bucks and have had some fun. You can see from the first photo that the inner workings are simplicity itself.
And see in image #2 that I went against the printed warning to not use any powder, I made up a scoop out of 1/4 of a .22 LR shell and found that dumping it into the breech piece filled it full of FFFG, I could still barely get the .168 lead ball into place (They intentionally left precious little room between the ball seat and the nipple). The gun was designed to be fired only with a #11 percussion cap, and I do not advise anyone else to follow my foolishness.
This well made capgun is woefully underpowered, and even with the tiny added American Pioneer FFFG it will not penetrate fir plywood unless you hold it right near it. I decided to try a .177 pellet but found that the .184 diameter of the skirt would be too much resistance for reliable barrel exit, even with the FFFG. So I made up a pellet sizer that brought the pellet size down to .169, that did the trick.
I can't tell any difference in loudness firing with either just a cap or with the FFFG, so it may be that much of the powder isn't burning. There is only a tiny ledge of steel holding the breech piece from coming back into your face, which is part of why I don't recommend going against the warnings.
The gun shoots about 4" high at 15 feet, and even at that range the "group" is about 6" in diameter. The pellets are taking the rifling as all impressions are round. The "BB's" look like regular BB's but I assure you they are copper plated lead.
I decided to write this because I couldn't find much on the web about the little gun, and thought to change that a bit.