I built a 458 on a Mauser that I'll probably never use. The problem is I am a left handed shooter. Now I want to sell my Mauser and build another 458 on a Ruger action. I saw a post at the 24hr Campfire with a picture of a set of fixed sights with a peep that would definitely make the final cut on my next 458 if the 'smith can adapt one to a Ruger integral scope base. Sean