I've used a 25X Kowa for a couple of years. It does what I've asked it to do, so far. About the same price as the Leupold.
Can find them at
Champions Shooters Supply , or
Creedmore Sports . I think
Jim Owens still sells them as well.
A HP coach told me once that anything more than a 25X could be overkill, and cause some serious problems wih mirage at longer ranges. His two cents.
Regards,
S.