Yesterday several friends accompanied my wife and I to the new gun club property. We set up an informal firing line and I proceeded to teach them the basics of safe operation of a variety of air rifles/pistols. The Daisy 120 was the only one that didn't get much love, stiff trigger and horrible open sights...But to get to the subject matter, as I was fooling with the Discovery, suddenly I heard a HIIIIiiiiiissssssssss. The CO2 cartridge in the 2240 dumped 99% of its gas and left the guy who was loading it looking startled and a bit guilty, although he'd not done anything, that I could tell, wrong. After firing the pistol to confirm it was basically empty, the cartridge was dumped out (looked normal) and a new one was inserted (with a drop of appropriate lubrication as per standard practice). After tightening the cap again the pistol was cocked and fired, but at first there was no sound of a pierced CO2 cartridge and a couple more cycles were required before the normal sound of a pierced cartridge was accompanied by the visible spray of excess CO2 out the muzzle of the barrel.The pistol is almost bone stock, just the addition of a Mellon Air RVA with zero pre-load on the OEM spring. It appears to be functioning normally now, although I've not run it over the chronograph to see what it's doing after that episode. My curiosity is stirred up, to say the least. Never had anything like it happen before.
Quote from: AmBraCol on October 17, 2016, 02:06:48 PMYesterday several friends accompanied my wife and I to the new gun club property. We set up an informal firing line and I proceeded to teach them the basics of safe operation of a variety of air rifles/pistols. The Daisy 120 was the only one that didn't get much love, stiff trigger and horrible open sights...But to get to the subject matter, as I was fooling with the Discovery, suddenly I heard a HIIIIiiiiiissssssssss. The CO2 cartridge in the 2240 dumped 99% of its gas and left the guy who was loading it looking startled and a bit guilty, although he'd not done anything, that I could tell, wrong. After firing the pistol to confirm it was basically empty, the cartridge was dumped out (looked normal) and a new one was inserted (with a drop of appropriate lubrication as per standard practice). After tightening the cap again the pistol was cocked and fired, but at first there was no sound of a pierced CO2 cartridge and a couple more cycles were required before the normal sound of a pierced cartridge was accompanied by the visible spray of excess CO2 out the muzzle of the barrel.The pistol is almost bone stock, just the addition of a Mellon Air RVA with zero pre-load on the OEM spring. It appears to be functioning normally now, although I've not run it over the chronograph to see what it's doing after that episode. My curiosity is stirred up, to say the least. Never had anything like it happen before. This happened to me as well. I bought the gun from Mountain Air Custom Airguns and Roy had it fixed in a jiffy. Turns out there was a bit of metal stuck someplace. Give Roy a call (http://www.mountainaircustomairguns.com/). Probably will charge you (free for me because I bought the gun from him), but never hurts in paying to have the gun tuned and the problem fixed at the same time.
A minor spec of debris gets caught between the stem and the seat. A good deal of the time it can be cleared by a firing a few quick repetitive shots without any pellets loaded..the spec gets blown out the TP.
If you owned any CO2 gun for more than a week, that would do. They are all garbage (with very few exceptions). Very hard to find one that is well made. I've owned lots and never had one that lasted.The seals go very quickly.