Re: AIMPOINT or OPEN SIGHTS
Xs and Williams sights come to mind, search brownells. You will pay more for the 2 moa aimpoint, than you would for a 4 moa version and with the ranges we hunt, you will never notice the difference in either round you mentioned. I have owned quite a few of the different aimpoints over the years, they are fast as hell, and you can shoot some very respectable groups with them as well. I have bought all of them used off gun boards or eBay, lots of nock offs out there so be careful.
The aimpoint pro is a great deal, everything you will ever need, brand new for around 400$ With a 2 moa dot.
I have a aimpoint compact in 4 moa on two different rifles and a 2x 5000 series on my rifles 20g 1100.
We can get together her if you want to try one out.