This classic British cartridge was introduced in 1900 and it represented a step-change in energy compared previous rounds that were in use. Launching a 500 gr bullet at a modest 2150 fps, it combined energy with modest pressures that ensured perfect functioning under any conditions. The headstamp on these cases although not Bertram, were made in the Bertram factory to the same standards as his other brass. The price is per 20 cases and the shipping weight is 450 g.