I have a Charter Arms Bulldog Pug .44 Special I bought about 6 years ago, and am pretty happy with it.
As someone else has said here, they are " roll of the dice " guns. I went thru three different ones to get the one I have now, and it's a good one.
The innnards are somewhat loose and rattley, action a little rough, but it shoots to point of aim with the sights, and shoots every time. It is very accurate with a couple of loads, not so much with others.
For someone wanting the biggest caliber in the smallest, lightest package, the CA Bulldog/Pug is the only game in town as near as I can tell.