Cam adjustment – In-Power

Leupold Mountaineer – Internally Adjustable 4X & 6X Riflescopes (1954–1959)

July 4, 1954

Overview & Design Introduced in 1952, the Leupold Mountaineer was a major evolution in Leupold’s sporting scope lineup. Designed with internal micrometer-style windage and elevation adjustments built directly into the streamlined 7/8-inch tube, the Mountaineer eliminated the need for external turrets or reliance on mount adjustments. This made it both more precise and more streamlined…

Leupold Plainsman – America’s First Fogproof Riflescope (1947–1954)

July 4, 1947

Overview & Design Introduced in 1947, the Leupold Plainsman was the first American-made nitrogen-sealed riflescope. Designed in response to Marcus Leupold’s personal experience with fogged foreign optics, the Plainsman represented a major leap in hunting scope durability. It featured a fixed 2¼× magnification, streamlined steel body, and internal cam-style windage and elevation adjustments—without the protruding…