Others
Hi all,
I recently had my SPR chrono'd at my local site and it shot 523fps using a 0.2 (site limit is 500fps). The mods are as follows:
AA teflon cylinder
AA 45deg piston
AA M150
AA steel sears/spring guide stopper
PPS ball bearing spring guide
Prommy 6.03, 433mm
ML delta bucking, 80deg...