My latest .22 fun gun is my S&W 43c, it's a centennial airlite weighing only 10.6 oz, and I use it as a trainer to help master my S&W 642 J-frame. But I haven't found any 8 round speedloaders yet.
"He said he fired a burst at the chest and if they didn't fall fast enough, he fired a burst at the face. He never needed to reload and had enough on board so if he missed a shot or two he could catch up in the fight. " -Gabe Suarez, 2008