Callin,
Just a note of caution for you here. There are no peep sights that are "easy" to adjust up and down, and sideways. Peepsites are alot different than scopes. With scopes, you can shoot 3 shots, check the center, and then do easy clicks up or down on the scope dials, and the entire group immediately shifts in a pre-determined amount.
Peep sights are different. They are iron sights, and as such, you really have to take your time. Your eyes really get tired fast, and it is hard to focus and unfocus repeatedly in shooting your groups. Depending on how your eyes work, and how strong or weak they are, you could shift the rear sight a few clicks in the correct direction, and see absolutely no shift whatsoever in the group. Then you could make one more click, and find that everything is shifting over 4 inches.
For this reason, I found the target Williams peeps to be very very frustrating. There are lots of little set screws to tighten and untighen, and you can easily get lost and turn one of your adjustment screws in totally the wrong direction. The gradations of the clicks are too small, and are in my experience simply not necessary for a hunting rifle.
For this reason, I really like the Williams FP sight that just has a vertical and horizontal slide arrangement, with white marks to show you how much you have moved your slides, and two tighening screws. No adjustment screws, no knobs, no confusion.
Just my experience.
Mannyrock