CZ550 25 inch barrel 5 shot ave chrono 12 feet from muzzle great arizona day about 75 deg today. All horn brass and win mag primers

350 horn RN 85 of WC846 = 2320 fps spread of 64 fps ( huge muzzle blast )

350 horn RN 75 of IMR4895 = 2335 fps spread of 24 fps

500 horn RNSP 83 of W748 = 2104 fps spread of 51 fps

I know way under Lott ballistics but the Lott is kinda new for me.....just fun blasting away

Jason