my normal ball is a 330rx
but I can hit other balls and they feel heavier?
Am I imagining it?
In my head a srixon z star feels "light" and others feels "heavy" off the clubface
Golf balls may not weigh more than 1.620 Ounces. Slightly smaller or heavier balls go farther so the USGA and R&A regulate the maximum size and weight. The British ball used to be smaller but now the rules are the same. I believe more manufacturers make balls as close to the maximum weight allowed.