Homemade recoilless break-barrel
Made by a very talented airgun builder who must remain nameless because of the peculiar laws in his home country.
He calls it the Quintus 1.0
Specs:
Total length 107 cm.
Barrel length 41 cm
Weight 2,9 kg.
Caliber: .22
Power Gamo 440 spring : 14 ftlbs
Speed 660 fps (14 grain pellet)
Vertical Rekord type two stage trigger
He says:
For now my best and [most] accurate air rifle I ever made. Stable small trigger system. No horizontal shock during shot. Peep sight. Low noise. Carbon sledge. Walnut stock with checkering. End of cocking arm brings the action in right position during cocking. Green nylon block) .
Because of the shock absorption in horizontal direction... it absorbs 100% the recoil but there is still a tiny movement in other directions and that I think because of the internals and friction between the sledge and action... The action slides in the carbon sledge and in front of the stock are two gliding pins They go through the breech to keep the cylinder in place (to avoid turning).
See picture, the cylinder kept hold and in position left circle carbon tube, right circle the sliding pins in the breech: