Ortofon 2M Bronze

The 2m Bronze and Black use a different magnet structure than the Red and Blue. If the Silver is similar to the Red and Blue, then the Bronze stylus will not be a premium match to your Silver. The 2m Red is a bonded elliptical diamond stylus, the Blue is a nude elliptical. Is your Silver one of these stylus? If so it's probably a rebadged Red or Blue.

look at the specs 
bronze and black share same specs, red and blue share different spes
body is the same but your results will not be optimal

There are differences and Ortofon chose a different motor so they have their reasons. May be silver wire vs. copper, who knows? But it was important enough that I'd go with Ortofon's recommendation.