I've just got a Kampf Pistole which uses 27mm cartridges but I can't get them to hold gas I've got a 16 shot one that came with the pistole and I got an additional 32 shot one and I've been unable to get either to work, anyone got any suggestions?
how are they not working? not firing or venting upon filling?
The problem was that I couldn't get them to hold gas, you notice that phrased that in the past tense this is because as soon as I'd made the posting asking for help I managed to get them to work.
I'd had a look on other sites which said you had to reset them, which I duly did, but the problem was that I was pressing too hard when I tried to fill them and the mechanism got pushed back causing the cartridges to dump the gas as fast as I put it in. I've managed to fill and fire both cartridges now although I'm still finding it awkward to gas them, so any hints or tips would still be welcome.
oops sorry missed that lol no sleep after a flight 
I maybe wrong but like my revolver dont they come with a filling nozzle(brass etc) that stops you from pushing it in to far?