DF:
Good observation regarding eye relief forgiveness. I would add the forgiveness in terms of eye-to-center of lens. The Leupold and other more quality scope have lenses which are fully polished. In contrast, my SWFA scope has only the center of the lens polished. The instant I move a bit off center of the crosshair, the lens goes completely cloudy. My Leupold and Nightforce scopes are far more forgiving in this sense of forgiveness.
However, since the SWFA is for daytime hunting only, for varmints, the lens' lack of full polishing is less critical than my sun-up to sun-down Nightforce scope for deer hunting. I bought the SWFA solely because people seem universally to praise the excellent repeatability of the turrets, and the excellent cost. I have yet to deploy it on targets and varmints to assess it.
Too, adding an adjustable objective will add to that forgiveness in terms of perceived POA to POI accuracy. At 400 yards, it factors in at just under 1 inch. I believe it is 8/10". One inch at 400 yards on a deer is little consequence. One inch at 400 yards on a varmint headshot, now we're talking hit or miss. The problem is, some of my scopes do not have a clear sight picture at the indicated distance. Meaning, I know the distance is 300 yards per laser ranging. When I set the AO to 300, the picture is very unclear. I have to take the AO to about 380 yards for clear sight picture.
Geno
Good observation regarding eye relief forgiveness. I would add the forgiveness in terms of eye-to-center of lens. The Leupold and other more quality scope have lenses which are fully polished. In contrast, my SWFA scope has only the center of the lens polished. The instant I move a bit off center of the crosshair, the lens goes completely cloudy. My Leupold and Nightforce scopes are far more forgiving in this sense of forgiveness.
However, since the SWFA is for daytime hunting only, for varmints, the lens' lack of full polishing is less critical than my sun-up to sun-down Nightforce scope for deer hunting. I bought the SWFA solely because people seem universally to praise the excellent repeatability of the turrets, and the excellent cost. I have yet to deploy it on targets and varmints to assess it.
Too, adding an adjustable objective will add to that forgiveness in terms of perceived POA to POI accuracy. At 400 yards, it factors in at just under 1 inch. I believe it is 8/10". One inch at 400 yards on a deer is little consequence. One inch at 400 yards on a varmint headshot, now we're talking hit or miss. The problem is, some of my scopes do not have a clear sight picture at the indicated distance. Meaning, I know the distance is 300 yards per laser ranging. When I set the AO to 300, the picture is very unclear. I have to take the AO to about 380 yards for clear sight picture.
Geno