Quote from: PaulT58 on December 06, 2018, 08:15:26 AMQuote from: Nomadic Pirate on December 06, 2018, 02:46:36 AMWhat pellets where you shooting ?The JSB Exact Heavy 18.3 gr pellets. I was trying the CPUM 14.3 gr's when it misfired and jammed. I won't be using those in it any more!Mr Lee is already designing Magazines for the shorter pellets.
Quote from: Nomadic Pirate on December 06, 2018, 02:46:36 AMWhat pellets where you shooting ?The JSB Exact Heavy 18.3 gr pellets. I was trying the CPUM 14.3 gr's when it misfired and jammed. I won't be using those in it any more!
What pellets where you shooting ?
I got one of these kits awhile back, and like it so much, I just ordered another as a back-up!
Still tinkering, but getting better. Here's 2, 10 shot groups at 20 yards. Sorry you can't read the chrono. I'll do better next time.
Some of the pile drivers didn't even hit the target!
If so, don't. LOL!!!If all else fails, degass, and check that the air tube is truly screwed tight against the block threads. And that the valve screws are fully tight. Take care not to strip them.If the tube is not fully tight against the block, the descending pressure can cause it to move slightly, as as the barrel band in on the other end, it will act as a fulcrum/lever and move the orientation of the muzzle ever so slightly as the pressure lowers in the tube. Knife
Quote from: cootertwo on December 06, 2018, 05:12:25 PMSome of the pile drivers didn't even hit the target!I've not found anything that shoots those piledrivers worth darn, other than a slingshot! Quote from: KnifeMaker on December 06, 2018, 04:47:54 PMIf so, don't. LOL!!!If all else fails, degass, and check that the air tube is truly screwed tight against the block threads. And that the valve screws are fully tight. Take care not to strip them.If the tube is not fully tight against the block, the descending pressure can cause it to move slightly, as as the barrel band in on the other end, it will act as a fulcrum/lever and move the orientation of the muzzle ever so slightly as the pressure lowers in the tube. KnifeInteresting, I need to check and see if this is causing my POI shift. Although, I can't imagine there would be that much change after just a few shots. Here's a picture of a 6 shot string I did feeding individual JSB 18 gr pellets. This was while I was trying some things Travis suggested to see if we could isolate the cause. The first 3 shots are the top 3, the next 3 are the bottom 3. All shot at 35 yards from a rest. Something is shifting somewhere, I'm just not sure what or how...
Travis, I will give that a try and see what happens. Hopefully, I'll get some time tomorrow, if not it may be weather permitting because we have more strong storms predicted for this weekend!