FWB Sport breech seal.

[Vic Thompson]

from memory it's a 10 x 3, but I'll check in a few mins after brekkers.

Vic T

[Vic Thompson]

The pack in the Garage says : Nitrile 70 Rubber O Rings, 3 x 10mm.

However, I don't know if they are exact replacements, as although I've been using them for years, they might be the wrong material and hardness rating, but they certainly work on a temporary basis.

HTH, Vic T

[gtfreight]

The pack in the Garage says : Nitrile 70 Rubber O Rings, 3 x 10mm.

However, I don't know if they are exact replacements, as although I've been using them for years, they might be the wrong material and hardness rating, but they certainly work on a temporary basis.

HTH, Vic T

Hi Vic,

You sent me a couple last year when I bought some bits from you. They are a good fit but the first one has spread out a little over 6 months so I'm looking for replacements before the second one wears out. If I buy 20 they should last around 10 years which is fine by me.
VTR 70 are widely available in that size so I shall get some ordered.
When I measured the recess I read it as 11mm i/d x16mm o/d so that was the size I ordered but the fit was not tight enough so I ordered 11mm x 17 mm which were to tight, I never thought to go down to 10mm.
By the way since you worked on my Sport it's been treated to a re-blue and the plastic trigger has been replaced with a Maccari one which cured the safety catch issue. It's looking georgious now as well as shooting spot on.

Many thanks,
Gary.

[smallholder1]

Chambers have them in stock

[gtfreight]

Chambers have them in stock

I too have seen them for sale from Chambers but at over £7 with postage I would rather buy 25 for a fiver now I've got the correct size from Vic.
Thanks for the heads up though.

Regards,
Gary.

[Phil Russell]

Agreed 10mm x 3mm
Cheers, Phil

[abellringer]

Only just got back to looking at forum, but this one caught my eye, as I had a little thought about 'Sport' breech seal sizes. Here's what I have in my 'Bible'.
FWB issue = I/D 10.00 X 3.00 as normal; however this doesn't fit all guns; some breech grooves are O/D 15.70 X I/D 10.90 = 2.40 sec'n. with a groove depth of 2.30: a 'Std' 111 O ring will fit [10.78 I/D X 2.60 sec'n.] -- works OK. It's a tight fit and has projection above face. Also a metric 10.80 X 2.60 will work.
ATVB
abellringer

[deejayuu]

from memory it's a 10 x 3, but I'll check in a few mins after brekkers.

Vic T

As above for me.