I finally got my Williams peep sights. I got the combo deal w/FP and Firesight optical front sight. Installation was easy as can be. I shrunk my group size by quite a bit, I averaged a little better than 2" @ 50 yards. That is good for me. I was very impressed. Anyway I set up the sights to hit about 1" high at 50 yards figuring I should be close at 100 yards. Is this correct? I figure I'll not shoot past 100 yards anyway so I thought this was the best solution for me. Any other ideas? Thanks all. BTW, I just love my 336M!