I've posted many times here about my 351PD. It is a neat little revolver and you can shoot it all day long. Accuracy is best at closer ranges and my gun is quirky with respect to accuracy beyond that.

Aside from that, cleaning the front of the cylinder is virtualy impossible. I use high velocity .22 mag rounds and they leave sort of a golden finish around the front which I've yet to manage to remove, so I have left it alone. There is no build-up, but it's there. Mine came with an S&W .22 caliber cleaning kit which I like. Weight is next to nothing. I would carry it with some caution, even though I've heard (here) that ballistics rival the .380 acp.