The .338-06 is a cartridge based on the .30-06. It allows heavier .338 caliber bullets to be used from the .30-06 non-belted case. This can be a suitable choice for heavy bodied game such as moose, elk, and brown bear. The number and variety of .338 caliber bullets increased after the introduction in the late 1950s of the .338 Winchester Magnum cartridge, frequently chambered in the Winchester Model 70 rifle. More recently the introduction of the .338 Lapua magnum has caused an increase in interest in the .338 caliber and their projectiles. The .338-06 maintains much of the benefits of the .338 Winchester Magnum cartridge but has substantially less recoil, makes more efficient use of powder, and allows use of widely available .30-06 commercial and military cases. It is similar in concept t