Submitted by Dave
Those of you that don't use a Leupold scope aren't left in the cold, either. Kenton Industries makes custom turrets, (including windage turrets!), for many scopes.
ED - Dave, good call. I came across the Kenton Tuned Trajectory Compensator turrets while looking up information on the Leupold ones. As you mentioned, they offer turrets in several styles and for numerous manufacturers (Kenton listed Burris, Leupold, Mueller, Nightforce, Shmidt & Bender, Tasco, Zeiss, Bausch & Lomb, Simmons, Nikon, and Weaver.)
As with the Leupold turrets, when ordering from Kenton, you'll need to provide some ballistic data; muzzle velocity, barrel length, average air temp, altitude and barometric pressure, as well as the ballistic coefficient. From there you pick the style of turret you want, the incremental display preference, and any other information you want displayed. In addition, Kenton will do a completely custom turret for personal handloads.