Of course I'm gonna try proof loads. That's the proper way to do it right? I want to know that it will handle standard loads without problem. I'm not just going to slap one together and go hunting. I'm not gonna do it at my local range either. If you're not gonna do something right then what's the point of doing it? I know I'll never be able to build a "Best" quality gun but I want the best quality gun I can possibly build.