Will Brown Would Like Some Advice.

Constrained by range limitations he's looking to build a short range precison rifle:

My thought here is to discover what options I might pursue, with a gun I already own, to turn it into a reliable shooter at it's ballistic practical extreme, that I can also fire at a local known-distance outdoor range. I own a Marlin 983S that I intend to use as the basic platform, with which I can shoot 3/8 inch groups (from a rest) at 25 yards indoors without a scope (ie: the gun's basic accuracy exceeds my ability to shoot it).

If you have some thoughts on the topic, perhaps you can head on over and give him some suggestions.