I use all of the above, depending on the type of hunting I'm doing. LARGE "peeep" sights can be very good and extremely fast on deer and moose in thick cover and dureing inclement weather conditions, out to 150+m, I always take a "peep" sighted 7.65 Arg carbine (bubba) with me on extended hunts to cover these conditions. High magnification scope, use for BIG OPEN country where shots on deer and coyotes can and often are well over 400m, also time for a bipod or other solid rest as well. Low 1.5X magnification, use on 7.62x39 Yugo small action mauser, great for deer in heavy cover, when the weather is good. Iron sights are just as good as "peeps" under the same conditions as long as they are large enough and the user has spent enough time practiceing to use them properly. I've seen guys at club shoots useing iron sites, win over guys with scopes at the 100m targets consistantly at different club grounds, under different conditions year after year with iron sites of all types. You have to practice enough with whatever siteing system you choose to be successful it. Whichever system that you choose get to know its good and bad points and how to overcome them if possible. If you can only afford one type, it's not a great problem, but the availability of more is much easier to live with. bearhunter