So I just recently won an online auction for a cz 550 action with the rigby bolt face, and now it's the fun part of trying to decide on what to build. I already have a 375 h&h but that's it for safari calibers so pretty much anything is open, I was leaning towards the 416 or 450 rigby but I figured I'd ask the professionals for some input, I have plans for a 404 jeffery build already so I'd like something to compliment it for buffalo, hippo and maybe a ele