A set of two piece Leupold STD bases and medium rings for a Winchester Model 70, for a one inch scope tube weighed 4.8 oz. on my digital kitchen scale. Model 98 Mauser bases probably weigh a little more as the rear base is thicker.
Can't say on the Talley lightweights as I've never even seen much less weighed them. But Talley "Low" steel rings and bases for a M98 weigh 4.8 oz.
"It is wise, though, to remember above all else: rifle, caliber, scope, and even bullets notwithstanding, the most important feature of successful big game hunting is to put that bullet in the correct place, the first time!" John Jobson
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