I too went with a Trijicon RMR 2 3.25 MOA on my S&W 625 that I shoot 45 Super in to hunt with. Makes for a svelte package I can still belt holster carry.

I will be switching to the Trijicon SRO 1 MOA because I much prefer the bigger window and more precise dot. Having a smaller dot and being able to dial down the brightness makes a big difference in precision aiming. With that set up I am not sure I could do much better with magnified optics. I consider the 625 with 45 Super s a 50 to 60 yard gun anyway.