ORIGINAL: BTM
My Kahles seems to be 1/3" per 100 yds., but most of my Leupolds are the same.
I like my Kahles TDC, but you zoom it counter-clockwise, which makes it a little confusing because all my Yankee scopes are clockwise.
I have a "few" Leupold scopes,none have 1/3" adjustments. All of mine are 1/4 except for the target model's that have 1/8" @ 100 yards...[:-]