that's my baby!!!
as for using .12's, it's really dependant on how forgiving your nades are. i've had cheaper .12's jam up solid in CA nades before but i find that the madbull xm108/204's are fantastic. you can use pretty much whatever you want in them and they'll throw'em out there. i've found the madbulls worth they're weight in gold overall as far as the amount of maintenance you have to put into them relative to the amount of use you get. they're the best i've ever had and i've use gbtech, ca and madbulls. all but my madbulls have failed so i use them exclusively now.
for anyone with a revolver launcher thinking of getting the 204's for it....DONT. they dont fit in the cylinder...just too damn long. that's why the agx is mounted on Betsy. the king's fit in the agx with ease.
and how can you go wrong with throwing out 852rds in 7 trigger pulls?!?!?!?!?
