I bought a refurbished jet 1 in .25 cal. There was no air in it when I opened it so I pumped it up with a hand pump and when I released the pressure pressure release valve on the hand pump the air pressure on the guns gauge went down to exactly 200 bar. I got 3 shots then it was empty. I tried to refill it and every time I pumped air sounded like it was coming out the barrel so i unscrewed the air tube and put about 5 drops of silicone oil in the little hole on the thing the air tube screws into I put the tube back on and hooked it up to the hand pump and started pumping and the leak stopped. I pumped it up all the way and again the release valve made the gun drop to 200 bar only this time I fired 3 shots. After some research I found that when you turn the bleed valve on the hand pump you have to do so as fast as you can. It stayed at exactly 3,000psi but I had to pump it just a tad over that to get it to land exactly 3,000. The next shots were super loud and the pellets punched right through a metal craftsman tool box. Anyway I made this post to maybe help anyone experiencing the same problem and it will also get me a little closer to being able to reply to people on here. I've seen so many guns I wanna buy but can't because I cannot contact them.
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