Quote Originally Posted by mdunn View Post
hi, i have 1 in .22, how can you tell if its a high fill 1. what pressure do they need filling to. smothbore on here services them. atb mick
The hi fill has a standard B.S.A. fill adapter socket underneath and fills to 232 bar, the other Spitfire has a thread fitting underneath that can be filled from a buddy bottle or you can screw in a special adapter to fill from a diving bottle. You cannot overfill this one as it is fitted with a blow off valve and has a tiny indicator just in front of the sight ramp that has three line indicators to show percentage fill. The blow off valve can make some guys jump at the range who are not used to hearing it.

Baz