Tests I’ve seen suggest, in .177”, more like high 300s to around 400 with sensible pellets like Hobbys. That works out to around 2.5 ft-lbs. which is surprisingly low for a pretty fair sized pistol. 2.1 ft-lbs in .22” is definitely a bit low.Originally Posted by MDriskill
The model 5 should be a low-to-mid 400’s gun in .177.
The advantage of the model 6 in my opinion, is less due to extra swept volume, than the much greater momentum of the double-piston mechanism. No energy wasted by the dreaded “piston bounce” with that pistol!
Beeman ads in the 70s said “420 fps” in .177” and Dr Bob was not known for understatement.
That’s a really interesting idea on the 6. I could never work out how it seems to shoot as hard as the 5 with all that extra stuff inside.
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