Recent content by Jcalloway

  1. J

    Crosman Crossman 760 Powermaster

    What exactly are you referencing? I did notice there is a good bit of air when I fire it that comes out around where the front of the bolt shoves the bb in. I noticed this because I used a lighter oil when I was testing it and noticed it sprayed a little when firing, but I don’t see a way to...
  2. J

    Crosman Crossman 760 Powermaster

    I kind of thought that may be the case. I just figured if it was tight enough to pump the gun up, which it’s way better than ever, then it would be tight enough to hold the piston in place. I did end up putting a new piston in it, so it’s new. I have it adjusted as far out as possible before it...
  3. J

    Crosman Crossman 760 Powermaster

    Hello all, I have a problem with an old powermaster from the 70’s. It’s a buddy of mines gun and I was trying to get it working for him. I have changed all the seals, polished everything up, and it shoots great. I have one problem I can’t figure out. I would really appreciate any help. The pump...