Got hold of an old AYA No3 'Magnum', which I fancy using on the foreshore this season, just for a change. Barrels are marked '1200 bar' which seems like quite high pressure, although not sure if this is what they are tested to, or a working pressure? Ideally would like to use the gun with 3" high pressure steel, but from memory they require 1300 odd proofing. Obviously no fleur de lis marking given the age of the gun.
Anyone know the score here? Obviously not hugely keen on blowing my barrels up!