Thanks banoob
the 2400 shoots abt 580 fps (extended probe and regular hammerspring + power adjuster @ max) and 586 using a powerspring but needs another check because I changed the breech seal
the 2300 shoots abt 480 fps (extended probe) (or slower when I use a clipped hammer spring)
the 2240 shoots abt 423 fps (standard probe) and abt 443 fps with extended probe
all with a fresh powerlet, 10 shots, using 14.15 grainers
No valvejobs.
Accuracy can be checked on this board, 5 meter competion