Good to hear. I gave up and used the innernetwebtubes. Still haven't had a chance to really try them. Cycling them (no bang) was hit-or-miss but according to another forum poster somewhere the weight of the loaded mini-shell may throw off the math or something, and they only eject properly...
Just FYI, and for all I know they're out already so call first, but as of Thursday night / Friday morning there were many boxes of .22LR Remington subsonics and also Thunderbolt (IIRC) at Academy off of 210. $7 per 100 count box.
There are Youtube videos of various shotguns including the KSG firing them. Winchester 1300s reportedly eat them like candy and it is suggested that the derivative SXP likes them, too.
KSG test: https://www.youtube.com/watch?v=wq6vVNMioVQ
As for finding them locally, I am declaring a...
Forum and shotgun newbie here . . . thanks for all the knowledge you guys have bestowed already.
I've been looking for a local vendor who might be carrying the Aguila Mini-Shells . . . those nifty little short shells that unfortunately only work well in single-shot or certain pump-action...