The attraction of the spring-powered airgun, compared with other types of projectile-hurling implements, is its simplicity. Gas-rams, electric cocking mechanisms, magnetic accelerators etc defile and contaminate the essence of the springer WHICH IS ITS METAL SPRING.

Stop trying to fix something that isn't broken. A bicycle with a electric motor isn't a bicycle any more, its a crap moped. A hang-glider with an engine is a shite version of a proper plane. Playing conkers with hand-grenades is something you will only do once...