Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.
........And, maybe the higher mass of the big, heavy piston maintaining more momentum to combat piston bounce, Jon? Then they later implemented the inertia piston. I wonder, was the mass of the piston lighter, giving quicker acceleration and, maybe, higher efficiency, with the delayed "dollop" from the inertia piston there to combat the bounce? Seem to think that combatting piston bounce was the main raison d'être for the inertia piston.
THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
NEXT EVENT :- August 3/4, 2024.........BOING!!
Nah, I'm totally with you on this one, Al.
Hence I have loads of boingers and not one single gas ram.
Occasionally I have a daft little notion of maybe adding a '90 to my HW gang, but feel that if the time came I'd most likely end up buying another trusty springer anyway.
THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
NEXT EVENT :- August 3/4, 2024.........BOING!!
err... 'cos they don't "boing" ?
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.
THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
NEXT EVENT :- August 3/4, 2024.........BOING!!
This is getting beyond my knowledge, but anyhow..
Marconni of USA FWB fame has two spring set for the Sport: Old School and New. Basically the short and long springs have the same power when compressed; latent power. Everything else is to do with the chamber and how all that energy is transferred by air pressure to the pellet and as that pellet travels along the barrel until free. And still leave an air cushion for the piston to come to stop with out slamming into the front of the chamber.
I had great success with Theobens once they refined their designs. All shot very well. Non had any power or consistency issues. My Fenman hasn't missed a beat in 20 years.