Originally Posted by
bighit
Im sure the stroke is longer on the HW90 too .
100mm or 110mm from some sources for the Hw90 and 66mm for the Theoben Fenman
Post here about the Theoben
"The stroke of the piston on a 12 ft lbs theoben gas ram is 2.6 inches he or not. the diameter of the (dummy piston) or gas ram on the he model is 1/3 of that of the earlier one and the pressure goes up from 300 psi non HE to 750 psi HE. to achieve Fac velocity the stroke is increased to3.2 inches the eliminator has a stroke of 3.7 inches all Theoben's after TB 6000 are HE"
The 90 is only long stroked in FAC format. regular stoke is ~80mm.
But yeah, the guns are so completely different, there is no logic comparing. It's like saying why is an airsporter spring tougher than an HW57 spring. And 30mm HW bore vs 27mm Theo has a big effect too.
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.