Skeet,
In another thread, you mention that this rifle is an "informal 100 yard" and that you'll also be shooting score with it.
The general concensus in that thread was to build a 30 BR. In that context, it would be a 13.5 lb.
Have no idea what rules for "informal 100 yard" are at your club but seems penny-wise/pound-foolish to even remotely consider "informal 100 yard" requirements on a rifle you might shoot score matches with.
FWIW, Greg J.