A Nice little tip
Buy a cartridge gun which takes the none threaded cartridge (preferably the one with the gaudge).
Then look online for any Airgun shops these sell the cartriges for co2 powerd guns at around £18 for 30 around about 50p each but it's better to buy bulk.
They also sell a huge cartridge threaded type with about 50 small charges in it for about £8.
http://cgi.ebay.co.uk/SKS-Airchamp-P...3286.m20.l1116
http://cgi.ebay.co.uk/40-CROSMAN-12G...d=p3286.c0.m14
http://cgi.ebay.co.uk/40-CROSMAN-12G...d=p3286.c0.m14
This was just a quick search I'm sure you can get them even cheaper.
Cheers BIG BILL
