Has anybody experienced problems with these? I recently acquired a Umarex CO2 Peacemaker and a Dan Wesson CO2 2.5" both firing .177 pellets through rifled barrels. The pellet for the Peacemaker is inserted in a small bush at the base of the cartridge and the Dan Wesson loads by undcrewing a cap and inserting a pellet in the top of the cartridge.
About 1 in every 3 firings for each pistol results in a cartridge that either fails to fire or with a pellet stuck on the barrel. I have used a constant supply of fresh CO2 so power is not a problem. I can't rule out periodic valve failure but surely not with both pistols? I have gently reamed out the bushes in all cartridges which improved things a lot but not 100%. This is very frustrating as you can imagine.
It seems as if the cartridge system for CO2 pistols involves a large air gap somewhere. The Dan Wesson will have a gap about an inch long between the valve and actual pellet which lies at the top,of the cartridge. The Peacemaker is slightly different as the valve is adjacent to the pellet at the bottom of the cartridge, but with a similar gap between the pellet and the barrel. Perhaps this is just an inbuilt problem with cartridge/pellet systems that I just have to put up with.
I would be interested if it's just me and my pistols, or whether anybody has had similar experiences. I'm at work for the rest of the day so apologies if I don't acknowledge any comments until later.