Hey Guys
New to the forum, but ran across this thread somehow. This is right up my alley. I created the B&M series rifles and cartridges based on Winchester M70 WSM actions, and one cartridge for WSSM actions starting in 2005-in 416 B&M-458 B&M-50 B&M Super Short-and 50 B&M Long. A brief as follows;

Winchester M70 WSM Action 20 inch barrel
416 B&M is a 2.240 inch cartridge basically 300 gr bullets at 2650-350s at 2450-400s at 2300 fps.

Winchester M70 WSM 18-20 inch barrels
458 B&M-18 inch barrel-350s at 2450 fps-400s at 2300 fps-450s at 2220 fps-500s at 2130 fps.

Winchester M70 WSSM Action 16 inch barrel
50 B&M Super Short-True .500 caliber (NOT .510)-325s at 2250 fps-375-385 at 2100 fps-400s at 1950 fps--450s at 1800 fps-500s at 1700 fps.

Winchester M70 WSM 18 inch barrel
50 B&M Long-.500 caliber-510 gr at 2100 fps-470 at 2175 fps-426 2260 fps.

Someone on this thread actually saw one of the 50 Super Shorts on gunbroker recently.

I won't go into other details, but the rifles are out there, they are performing fantastic, light, short, easy to carry and handle. I have been using them since 2005. SSK Industries builds all the guns, have reamers, dies, and proper head stamped brass available.

If anyone would like to chat about any of them feel free to drop me a note to michael458earthlink.net, be glad to talk about them and get you some more information.

Michael