Ed, you're going to make me buy one of those!!!!
Re: Enemy at the gates (Stalingrad)
We shot it at 50m fixed distance, prone, no support, no slings, etc.
Doubt you need repeatable clicks and 25MOA rail for that, although it shouldn't hurt. However, we can add some variety and make a field course at different undisclaimed distances between say 12m-100m, sort of a military silhouette instead of a chick/ram/turkey/hog one