not a fan.... its hard enough to get banana mags to feed, let alone the drum.... i am sticking with multiple factory mags anymore.... your milage may vary.
22lr is inherently unreliable in semiautomatics (all things considered). Why add a unreliable drum mag to boot. +1 for Butlercreek steel lip mags though, almost as good as factory (notice that almost).
ive heard nothing but horrible reviews on the 50 round drum.i only ever use the factory mags or ive been using the shooters ridge 25 round mags.seem to work very well.but yeah the drum looks cool and all however i wouldnt waste my money on it.
I was reading reviews on this mag on CTD website.There was about 50 customer reviews and looks like about 45 of them said this mag is not worth buying.So I don't think I'll get one.That's too bad.
I have not heard of BD making a mag for the 10/22. Black Dog will be releasing a drum mag for .22AR rifles. A couple of folks on arfcom have beta tested a few samples.