Back when I was regularly hunting on a lease some 170 miles from home, I almost always took two rifles "in case of in case": My '06 and my .243. What I used on any given hunt-session depended on where on the ranch I'd hunt and the likely type of shot I might get.
So far, in the last 45 years, "backup" has never been any sort of actual need.
You're from BATFE? Come right in! I use all your fine products!