Here is my collection of shotgun inserts.

[u/rustygarlic123]

For the record I have only tried the 9mm, 22lr and .38 out of the 357. All of which I was pleasantly surprised by. Obviously they have limitations and are only good to about 25 yards. I’ve been hesitant to try the higher pressure 45lc and 357. Does anyone have experience with this or can recommend a single shot capable of handling such high pressure?

[u/Sysion]

I have a 9mm and a 357mag/.38spl insert which are about as long as a regular shotgun shell meaning the barrel is like 1/2” at most. You get no accuracy at all, but it’s still kinda fun. .357 is loud and just as inaccurate, and the case sometimes gets stuck but it shoots .38spl pretty good with no issue. Out of a Dominion arms backpacker 12” beak action

[u/rustygarlic123 → u/Sysion]

Ya , I could see that. Since mine are 6 and 11 inch with rifling they are not too bad once you figure out the aiming. They definitely have big limitations though past 25 yards