Cartridge Change

I have a Rega RP 3 Turntable with a Rega Exact 2 cartridge with around 300 hours on it. Was wondering if a Ortofon Bronze would be a step up or would I have to go the the Black to make a big difference. I could buy the Bronze today would be a couple of months before I could get the Black. I’m happy with the Exact just the table came with a Rega cartridge and when I upgraded I went with the Exact so I’ve never heard another cartridge. Want to stay with a MM cartridge when I do upgrade. Thanks for any input.