Why do they have to be such a PITA about finding the right size covers. Would it really be that hard for them to list the cover size for the particular scope instead of making you pull out a caliper and measuring? Don't have the scopes with me and want to order some covers. Does anyone know what size I need for a Leupold 4.5x14x50, Nikon Prostaff 3x9x50, Nikon Buckmaster 3x9x50? Thank you so much. Butler Creek, sheesh!