Puncher Breaker barrel question

[WatchHobby]

I have a Kral PB in 25 and when I take the barrel band off, the barrel drops down about 2mm. So in other words, the barrel band puts a fair amount of upward pressure on the barrel. Not sure if this is normal. I've loosened the barrel screws first etc. to see if it relaxes it but the barrel fits very tightly in the breech so it doesn't matter if the screws are loose or tight - barrel still gets a lot of upward tension with the barrel band on.

I run without the band sometimes butt the barrel bangs against the inside holes of the scope rail structure and I like it secure so I can lean it against trees etc.

Anyone know if all PBs are like this and if it hurts accuracy to run the band?

 

[thammer]

It could be the airtube valve fitting as well. You may be able to tighten the rear valve retaining screw and pull the tube down.

 

[WatchHobby]

It could be the airtube valve fitting as well. You may be able to tighten the rear valve retaining screw and pull the tube down.

It seemed tight but yes I'll try that too. Thanks

 

[JimNM]

I took the shroud off my PB barrel. I used the rear shroud cap inside the barrel band to keep the barrel centered. A small shim of paper makes the fit between band and shroud cap tight.

Is your barrel bent?

 

[WatchHobby]

I cut the barrel shroud down to about an inch, used the cap and with the inch long shroud with the barrel band.

Barrel doesn't seem to be bent, it was bought new from PA and have barely used it.