Just ordered some 8x1 Viton Chris........dunno if they will fit.....but there's only one way to be sure!
May even be worth getting the barrel grooves taken up to a 'standard' size! perhaps.
Although I've just ordered 50 - 7.9 x 0.8 nitrile from the bay for under a £5....let's see eh!
(polymax were out of stock)
Thanks for the offer though mate....tis appreciated!
Cheers.
Roy.