Highest Rifle Velocity
5278 fps in .22-243 Middl.
5130 fps in .22-250 Ack Im
Most Powerfull Rifle
14412 ft-lbs in .700 NE
13109 ft-lbs in .50 BMG

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The 6mm Thermos Bottle was designed by M.L. McPherson in 1999. It is based on shortened Lazzaroni Patriot case (or 416 Rigby). The purpose of this “Thermos Bottle” design was to make a fat and short cartridge, able to handle the heavy 115 grs VLD bullets for 1000-yard benchrest competition. From a 30 inch barrel, it generates approx 3000 fps. 

This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.

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