Model 317 Airweight .22 lr. Timing was terrible, it spit lead out of the BC gap on several chambers, and it heat-bound if shot more than about 15 rounds, even single action, if run even slightly fast. Allowing it to cool for 5 minutes restored function. And I couldn't get it to shoot any with any degree of accuracy, despite trying a dozen different types of ammo. This might be my problem due to very light weight; but I have at least a working knowledge of how to grip, hold, rest, and squeeze.
I sent it in for warranty service. They fixed the spitting but nothing else. The gun sits on my elderly mother's nightstand now.