Nikon Turkey Pro - or similar flavor. I have this one, it makes patterning at hunting ranges pretty predictable.

https://www.amazon.com/dp/B0037CLB7E?tag=nanwp-20

I spent a few days checking the pattern on my load, and the reticle circles helped me visualize when the pattern was going out to about 40 yards.

Last edited by AH64guy; 01/06/17.