A receiver mounted peep wasn't really an option for those rifles I mentioned, but I do have receiver mounted peep sights on other rifles. For me there is little, if any, practical difference in speed of target acquisition and accuracy by having the rear sight further away from the eye on those rifles compared to other 'similar' rifles I own (eg. TCR 22 with peep on the receiver vs. BA22 with peep on the barrel) for the type of shooting I do. I am sure that the receiver mounted sight affords a greater degree of accuracy for target shooting, but I don't think that you give up a great deal by using the barrel mounted sight on rifles used for plinking, shooting steel, field use, etc.