Pellet issue? Or...

[shadow]

Bad piston seal with lube getting in front possibly or I would be looking at the crown for lil burs etc. Ed

[airiscool]

Just curious to add to my "why-did-it-do- that" check list.

 I've been down the "bad seal" road, and seen what that can do to groups, but I've never had a gun with crown problems.

Has anyone had a gun with a bad crown that will repeatedly shoot two-three shots into a nice tight group, then throw a flyer a couple inches away at about 10-15 yards ?

Did  only fixing the crown  solve the problem ?

Paul.

[Mebits]

Interesting...This is preliminary as I've just not had time to do a full test, but I pulled out an OLD box of Daisy wadcutters. "SuperMatch" "QuickSilver". They seem quite light.

I shot a few at 10 yards. 3 just about in the same hold (about 1.5" above b/e) and one 3/4" low clearly due to my rushing the shot. Interesting...

So, I just tried 6 more at 20 yards, and put 2 almost touching (again well above b/e), and three touching 3/8" to the left and the 6th was way high. I may have rushed htat one and been welding my cheek too hard, though. I'm going to run another 20 pellet test on a clean target, taking my time and letting the wind die down. I'll advise.

If my theory is correct (and we should know in a while when I have some time), I'm thinking that I need to wash my CPHP's in a bit of Dawn and maybe lube them with endust or similar(?) thereafter. Thoughts?

[Bentong]

Yup..when I chop my Air rifles barrel and re-crowned it I have to fine tune it else it's like shotgun. I do Q-tip check and no snag but have to follow up with magnifying lens to ensure burr free polished crown.

[Bentong]

Yup..when I chop my Air rifles barrel and re-crowned it I have to fine tune it else it's like shotgun. I do Q-tip check and no snag but have to follow up with magnifying lens to ensure burr free polished crown. Also don't forget the breech lock up. If it's got side play it changes position every time you shoot it.