I have a surplus to requirements semi auto, works as it should with anything above 28g carts, all iv tried below that is 21 gram shells so 28 is probably not the minimum.

its not the best looking of guns but for slinging in the back of the truck or figiting through undergrowth it is a useful tool, goes bang and shoots where you point it!

Im after 115 for this gun and I'm located in the Midlands , I travel a lot so if you are a bit far away it's always worth asking the question