Reply To: Marauder 25 FPS
I’d be happy with 760 fps if the deviation was small and I got 3 mags on a fill. Having said that, Make sure your VMS (valve metering screw) is backed out 5 turns from all the way in. You can increase hammer spring tension and lengthen the hammer throw to get more power. Maybe AJshoots will chime in, he really knows the Marauders.