The RM66 was precise. I did learn that my groups tended being strung a little vertically. I believe that was because of a Smith & Wesson bias, as I am accustomed to white outline rear sights with crimson insert front ramps. The RM66 includes a white define rear sight, even https://spencerbayyu.azzablog.com/29306358/the-ultimate-guide-to-rm66