I would recommend against a .50 and surely dont by a .416 because you will never get brass, bullets, or loaded rounds for it unless you pay out the ass. And I do mean out the ass. If you want to go big, at least go with something accurate. A 338 Lapua is great and you can buy factory match ammo for it. 50 has some match ammo but unless your shooting the 750amax your not getting much out of it If you want something different, go with one of the below but be prepared to spend some coin. 30-338LM 338NM 375/408 Im actually in the process of determining my next build which will be a 30-338 either LM or NM or else a 338LM. Custom build of course. I