WVHB, I have only used a Cabela's Pineridge reddot sight and that was on a Ruger Blackhawk revolver in 41mag. I highly recommend this scope/sight, but don't remember FOV. BTW, the info about leaving both eyes open when shooting a reddot is spot on unless you happen to use a reddot with magnifying lens'. If FOV is an issue, the larger tube of some models will enhance FOV but they are more cumbersome.