Craig Boddington was the senior contributing editor of our modern gun and ammunition caliber dictionary. Craig was involved in the development and testing of many of these and writes from first hand experience. This dictionary was written exclusively for Wholesale Hunter with unique information found nowhere else.
GUN CALIBER DICTIONARY
Rifle Ammo
6mm Norma Bench Rest
The 6mm Norma Bench Rest (6mm Norma BR) was introduced in 1996, one of several variants of a short 6mm cartridge intended for supreme bench rest accuracy. 6mm Norma BR is based on the 308 case shortened to 1.5598 inches and necked down to take a .243-inch bullet, using a Small Rifle primer. The 6mm Norma BR is dimensionally similar to the 6mm Bench Rest Remington, but Norma's specifications call for a longer throat allowing "seating out" of longer bullets. With the efficiency of its short, fat case the 6mm Norma BR produces surprising velocity, with a 105-grain bullet at 3045 fps. 6mm Norma BR has become the most common of the several 6mm variations for bench rest competion. — Craig Boddington