Tight doesn't mean airtight. If the brass is not loctited to the barrel theres a small air escape route downwind of the breech seal. May not be a significant air loss. But if I loctite the barrel into the brass housing then loctite the brass housing into the block it'll be a nightmare to remove in ...

Welcome Keith. Good writeup - you can stay 👍 Richard, brassware loose on barrel but stuck in block may also be leaky and lose some power. If you use heat remember the o rings under there - you’re only supposed to blow the bloody doors off :mrgreen: Peter the barrel isn't loose when the 2 top grub s...

Welcome Keith. Good writeup - you can stay 👍 Richard, brassware loose on barrel but stuck in block may also be leaky and lose some power. If you use heat remember the o rings under there - you’re only supposed to blow the bloody doors off :mrgreen: Haha yes Peter I won't forget to remove the transf...

Hi all, just signed up to hopefully help RichieRich612 with his problem. I had problems with seating the pellets in my s410. I found that the barrel had moved forward because the Loctite holding the barrel seal holder had failed. I was able to remove the barrel and leave the brass holder in place. ...

Maybe it has slipped back and out of position leaving a gap. Removing and refitting the brassware may do it. Heat and loctite required. That seems the logical answer Peter. I did have a look inside the breech but couldn't see a gap, plus the brass housing is flush with the breech housing at the loa...

Has it always been like this? Or just started to happen, the barrel seal holder is normally loctited to the barrel, and should come out with it, some times they stay in the bolt housing and can be difficult to remove, I only suggested a new one in case the old one had some damage .Rog Yes it's alwa...

The MPR was only available as .177 and uses a CZ barrel, the only time I have had the type of problem you have, is when using short pellets, and that was when using a rowan mag kit, they dropped into the tray, and the probe squashed them, I don't use short pellets anymore, just stick to AADF 4.52. ...

What pellet are you using? You will notice that as you close the bolt on the .177 the pellet is pushed up into the breech, rowan engineering get round this by making a small piece of curved metal that fits in the tray, this helps to keep the pellet level as it accesses the breech, it's all to do wi...

Bit of trouble with the s400f guys and I haven't a clue how to remedy it even if it's possible at all. Loading the pellet is the issue, feels as if the pellet once pushed past the breech seal wants to divebomb into the transfer port. I've never had this issue before with any Air Arms Rifle. If loadi...

Yoi can’t upload photos here. Need to use image operators with Photobucket, imgur etc links Hit the quote button on this post and you csn see my link for this https://i1146.photobucket.com/albums/o533/TenMetrePeter/6C5DAD8F-6E3F-47DF-8FA0-9F9C3E170864_zpslxsxgbmb.jpeg That’s my S400 MPR 10m So what...