Yeah... To each his own.
^ you're right... But if you're hunting a whole flock of grouse, use a .22. The Game Getter wasn't intended to be a hunting tool. It's intended to be a "grab-something-on-the-way-back-to-camp-for-the-pot-cuz-it'll-taste-better-than-deer-track-soup" tool.
Has anyone made small game loads for the 7mm Rem Mag with Trail Boss or other pistol powder?
Is it safe to do so with a cartridge with greater case capacity and is a lighter or heavier bullet weight recommended?