Re: 300 win mag
Beautiful rifle! You can add me to those building a clone of Broz's 300win. I can relate to how hard the wait is. I went with the A-3 which has an identical drop on the buttstock as the Gamescout. Like you I'm concerned about how it will handle during recoil but a + side to it is that it makes vertical adjustment during target acquisition a little quicker. When I get mine we should compare notes on load development. Sounds like all the components are going to be similar.
If your not questioning your sanity your not hunting hard enough!!!