well done mate - keep digging these little treasures up! bonkers but brilliant!
Interesting to see that there has been a lot of design development of high power air rifles recently across the globe.
IIRC, aren't the american military looking into large calibre air rifles for long range sniping? (i'll have to google it?)
Love the dutch rules on air power BTW - uber jealous...
atb
jon

p.s. 45acp (powder burners) drops like a stone after about 115yds (IIRC), so i wonder what the trajectory will be like for this (what grain pellet?)...so something closer to 9mm (.30cal) would be more appropriate for longer range applications at that power (750fpe)...hey, but worth experimenting, can i get a job there