I had a Tasco AccuDot on my 45-70 ,but I found that at 50 yds it covered the entire 5in. bull on the target I was using..The site handled the recoil of the stiff loads I was had made up just fine but it was limiting my effective range. At 100yds it would have covered the entire vital area on a med. size deer, so I went back to a scope.The red dot does work great on a slug gun tho.