Re: Army M24 Build Thread
The Dec. 1992 Precision Shooting had an article I wrote about the Leupold Ultra scopes. This was prior to the internetz, and could be considered the 'dark ages' regarding sniper optic technologies.
But common knowledge at the time was the primary difference between the U.S. Army reticle, and the U.S.M.C. version, was how the reticles were manufactured.
The Army used a laser-etched glass reticle in the M3Alpha Ultra 10X. The Marine Corps used a wire reticle in the Unertl 10X.
To the users eye, the major difference is with the shape of the mil-dot. Army dots are circular, USMC dots are eliptical (football) shaped. There were also differences in the thickness of the stadia.
However, at some date, Leupold switched their reticle manufacture over to the wire-formed design. They also changed the name of their scope lineup from Ultra to Mark 4.
Not knowing the exact year Leupold changed over, I cant guess when the M3-10X was dropped from M24 production. However, I have documentation from John D. Rogers of Remington, stating the M24 contract had been finished circa 1995.