Common sense is the order of the day when looking to purchase a used scope.
In no certain order:
- Look at the overall outside condition, check to see if there are dents in the scope tube or bell ends. If it looks like its had a hard life it probably has. Normal signs of use would be light ring marks and some minor scuff marks.
- Look through the scope from *BOTH* ends. Check the glass/lenses for cracks, chips, scratches, etc. Look carefully at the inside of the tube and bells. If there is any sign of moisture - pass on it. Look to see if the crosshairs are bent, broken and or damaged in any other way.
- Take off the turret caps and turn both the Windage and Elevation adjustment knobs in both directions. Make sure they turn freely and "click" if they are supposed to.
- Turn any magnification adjustment wheel and look to see if it turns freely and if the magnification actually increases or decreases. (A fixed power scope will obviously not have this feature)
- Inexpensive scopes such as Simmons, BSA, etc will have a significant reduction of value from new. Its not uncommon to find these scopes selling at about $40-60% of low end new prices.
- Better name brand scopes such as Burris, Leupold, Nikon, etc will generally sell used if in good or better condition for about 75-85% of low end new prices. Keep in mind that brands such as Leupold offer a lifetime warrantee even if you are not the original owner.
With all that said. I own several Ruger MK II's. The ones that have optics on them have Red Dot's - Bushnell Trophy's mainly with an odd Tasco thrown in the mix.
Regards,
Rob