Out of curiosity a few years ago I wound the wick up on my .20 rapid shooting 14.3grn premiers, the maximum velocity peeked at 1476fps
bb
70fpe from a .20 with pellets?
Yep, 21 1/2” barrel, 4mm port, valveless free flow buddy bottle to block adaptor, non regged, 230 bar fill, prototype fast flow firing valve and a monster hammer spring.
i didn’t bother even trying accuracy it was purely an experiment to settle an argument to see what power/speed was achievable. There was a clip on YouTube for a while but it is no longer there.
About 3 months ago I set up a RAW 1000x .30cal, to shoot 51grn jsbs at 950fps, but before doing so I again pushed the limits to see what the maximum velocity I could achieve, I can’t remember the exact reg pressure but the first shot over the chrono blew it off the tripod so I thought the reading was an error, subsequent shots confirmed the speed at 1135fps.
Bb