Dave,
March Scopes are benchrest scopes, and if I shot BR I would probably use a March. As field scopes they are sorely lacking, which makes sense as their designers have no background in field shooting.
Not only is the eye box unforgiving, but their reticles aren't correct.
A friend in the know bought one of the 8-40X and had it on his Tac rifle. It was ditched pretty quickly...