Scott Tyrrell's Viper rocket on an EX M2500 pink motor for t' 76/7600 hardware. Well, blow me down! Blimey! I've been fine tunin' this propellant for some time, me bucko, and I think this version looks good. Well, blow me down! Blimey! This 12' tall, 5.5" diameter, ya bilge rat, 45 pound rocket went t' 9000' on this 8200 n/s load.