I have a Rem 760 in 270 cal that had an old weaver 2.5X scope on it that had the floating dot. My eyes have changed to the point that the dot floated right out of view at times. The mount was a Griffin & Howe side mtd w/ quick release levers. Problem with these are they were mounted low and the only scope (modern) I could get to sit in the existing mount in a vary power was the Redfield Widefield Low Pro in 2-7. I dont have the gun avail but I thought the new Redfield was a 1" tube and it mounted right up.