The definitions of long reach and short reach changed over time. Over the years wheel/fork clearances have compressed so what was short 20 years ago is now long.
It's best to avoid these vague terms and speak directly of the needed reach (the distance from brake hole to center of rim braking track) expressed in millimeters. The range of reach is a published spec. on brakes expressed as something like 39-49, and is usually also marked on the back of the caliper itself.
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