Not the same problem you’re having, but I did do some work on the barrel bands of my first Pneuma that was having a point of impact problem.Good news: it costs nothing to try.Bad news: it is a couple of hours of fiddly work.Idea is that the bands isolate the air tube, so any changes in air pressure/expansion aren’t transmitted to the barrel. Bands are o-ringed to the barrel and to the air tube. Poor photo, but can see the round “boss” the band fits into down in the fore end and the o-rings on the upper band.And the way the screws (actually would be bolts) attach to the nuts in the band to draw them down into those bosses:Ideally the air tube should be free to be unscrewed and slide in or out without any real resistance, If you have to fiddle around getting the tube lined up to pass though the lower bands, then they are being “tweaked” and that force will be transmitted to the barrel as pressure changes.So loosen the two screws(bolts) holding the rings to the stock (but don’t take them out yet). With the screws loose, try taking the air tube in and out. Being loose, they should self align. Sit and fiddle around with the screws that lock the band to the stock. Tightening both equally. And trying that air tube slide-fit. Loosening one, trying for an easy tube-slide into place, tightening the other, etc. Takes awhile. Eventually you’ll have the tube just sliding in and out in alignment with the screws as tight as will allow that.If you are really glutton for punishment, can swap the barrel bands and go thought the above all over again. Hope being that they align better when swapped (and if luck is with you, they could).Idea is to end up with the band screws in as tight as they can be AND still have that easy tube-slide-fit. May find that they can’t be tightened equally.If you end up with the tightest band screw tension that allows the tube to slide in and out freely, but one screw can’t be fully tightened to achieve that slide-fit, whichever band screw is loose indicates the band wants to be set a tiny bit higher to get it aligned. Can cut a thin shim and place it in the round boss that band sits in to get it “up” and allow full tightening.If it turns out that the tube is in alignment only when one of those band screws is bust-a-gut tight, then sand the bottom of that band’s “foot” so it sits a little lower in its boss.End up with bands that are locked to the stock and an aligned air tube that is not transmitting random stress to the barrel.And in fairness, the 2nd HAtsan didn’t show that alignment problem, so I never bothered to fiddle around with it’s bands.
BW,Very cool scope. Have you seen the one Ted showed on his site he found at the German IWA show. It looked about like yours. They retail for $500, which seems fair for what it does.http://tedsholdover.com/2014/03/12/iwa-show-2014/Now Ribbobstone:I owe you buddy. Thanks for posting the barrel rings segment. I have a new refurb that I hope to zero in today. It just so happens a couple days ago, I unscrewed my air cylinder on that BT to see if it was new as well. I knew the action, barrel, trigger and clips were new. But I forgot to notice if the tank was new.When I went to slide it back in, it was a good 1/4" too fat to fit back in, I had to press the stock down to get it back in place. Yes, bells should have gone off when that happened. But I am distracted right now caring for the g.f who just had open heart .When I saw your post, the lights came on and sure enough, the muzzle and the tank were touching. I took the screw out, I know the plastic insert on the ring will hold the nut/washer in place. I am hoping to head out an zero the BT and see what I bought. A shooter or a dud. Thanks for your wake up call.Be well,Gator
Quote from: Gatorproof on August 02, 2014, 01:28:04 PMBW,Very cool scope. Have you seen the one Ted showed on his site he found at the German IWA show. It looked about like yours. They retail for $500, which seems fair for what it does.http://tedsholdover.com/2014/03/12/iwa-show-2014/Now Ribbobstone:I owe you buddy. Thanks for posting the barrel rings segment. I have a new refurb that I hope to zero in today. It just so happens a couple days ago, I unscrewed my air cylinder on that BT to see if it was new as well. I knew the action, barrel, trigger and clips were new. But I forgot to notice if the tank was new.When I went to slide it back in, it was a good 1/4" too fat to fit back in, I had to press the stock down to get it back in place. Yes, bells should have gone off when that happened. But I am distracted right now caring for the g.f who just had open heart .When I saw your post, the lights came on and sure enough, the muzzle and the tank were touching. I took the screw out, I know the plastic insert on the ring will hold the nut/washer in place. I am hoping to head out an zero the BT and see what I bought. A shooter or a dud. Thanks for your wake up call.Be well,GatorHey GATOR IF YOU FEEL THAT YOU BOUGHT A DUD, I HAVE A FRIEND THAT IS READY TO BUY THAT DUD, PM IF YOU DECIDE TO SELL.
Quote from: Bwalton on August 02, 2014, 05:40:43 PMQuote from: Gatorproof on August 02, 2014, 01:28:04 PMBW,Very cool scope. Have you seen the one Ted showed on his site he found at the German IWA show. It looked about like yours. They retail for $500, which seems fair for what it does.http://tedsholdover.com/2014/03/12/iwa-show-2014/Now Ribbobstone:I owe you buddy. Thanks for posting the barrel rings segment. I have a new refurb that I hope to zero in today. It just so happens a couple days ago, I unscrewed my air cylinder on that BT to see if it was new as well. I knew the action, barrel, trigger and clips were new. But I forgot to notice if the tank was new.When I went to slide it back in, it was a good 1/4" too fat to fit back in, I had to press the stock down to get it back in place. Yes, bells should have gone off when that happened. But I am distracted right now caring for the g.f who just had open heart .When I saw your post, the lights came on and sure enough, the muzzle and the tank were touching. I took the screw out, I know the plastic insert on the ring will hold the nut/washer in place. I am hoping to head out an zero the BT and see what I bought. A shooter or a dud. Thanks for your wake up call.Be well,GatorHey GATOR IF YOU FEEL THAT YOU BOUGHT A DUD, I HAVE A FRIEND THAT IS READY TO BUY THAT DUD, PM IF YOU DECIDE TO SELL.Hello MR, BWYeah, I think I got ripped off. I mounted one of my old CenterPoint 4x16x40 Adventurer. The scope had been on my AT44 at one time so I guessed it would not be too far off zero. So see picture 1 for the first 5 ◇◇25.4 JSBs 25 yard site in.(those were shots #43-47 since new so under 50 total shots and spit out that little group.See picture 2 for best zeroing group of 5 @ 25 yards, the wild pellet was me trying a new trigger hold and Big Clunky has a very light trigger.Yeah, it's a dud, ♡♥♡♥♡♥♡ I am guessing that with everything new but case and stock for $486 and 90 days Factory Warranty I over paid and that thing wouldn't hit the side of a barn. The worst thing on the BT-65 Elite is the safety location. Just plain stupid. On the off bolt side near the top of the breech. I took may Gal out to sight in her new Hawke Eclipse 6x24x50. Sweet glass. I hated the center dot reticle until I figured out how to adjust it. I could read the outside target numbers at 50 yards , nice. She is so smooth and effortless to cock and shoot. My favorite feature on her is the little red Button that pops out at you to let you know there's a round in the chamber. Be Well,Gator