MARMIR,tried the site,but just got "This page cannot be displayed". But thank,s anyway.
And yes, I can see why a "Mamba" converted gun of this length, (135mm) would be quite difficult to load.
DAVE,well,the figure of 520 was given to me by Seac Sub.I e-mailed them because their manual for this gun,(on their web site) does not list a 135,even when I received the gun, the manual that came with it, also did,nt list it in the chart for, "No. of pumps required for a certain pressure".You may be right though,because although I have given it 550 pumps, it is quite easy to load.I did say (in another post) that I thought the gun had been "Over charged"at the factory,because there was absolutely "NO Way" I could load it,(even on half power).this may not have been the case,it may well have had the "correct" pressure to begin with.the only way I can resolve this,is to test it with a gauge.I don't have one of course, & I don't want to risk "Over charging" it,I will get back to Seac Sub by phone,(their not answering my e-mails). Anyone reading this, & can help, please advise.....Geoff. PS: The manual deos say that the 115 requires 470 pumps for a charge of 20 BAR.