Anybody own a Bond Arms derringer? I have one with .410/.45 barrels. I would like to also get the interchangeable .22 barrels. I suppose they will work okay since the specs list the .22 as replacements. But I wonder - the .22 is rimfire. Is that going to work okay? Will the firing pins which fire the center fire shell also fire the rimfires? I have submitted the question to Bond but haven't received a reply yet.

Abnother question. I like this gun but the trigger is very hard. Is there any adjustment a gunsmith could make that would soften the trigger?