Pellets lying around, I'm out till thursday and need some measurements as I got brave and took my clip apart also for a look see and to study possibility of enlargement, And yes I think a new face plate back cut for longer pellets is also doable, Even if a cut to the breech as grant suggested is needed for more width I don't see a problem as the whole issue is to do a nice neat conversion with the ability to use some a%& whoop'in 25's for coyote hunting. As Grant states above though may be easier to just use his proven parts making ability to get up and running with some kiwi bling!!!!Regards,