I have to agree. I have a .257 Weatherby Mag, 7 Rem Mag & 7mm STW for deer hunting. And of those, my .257 is my 0 to 300 yard gun, My 7mm Rem Mag, is my 250-500 yard gun. The 7mm STW is my 500-1000+ yard gun.
I only take them according to where I plan on sitting in the woods that day.
The .257 Wby is a very capable gun out to 500 yards with a 110 grain AccuBond.
The 7mm Rem Mag is one of my favorite calibers of all time. It's flat and fast. It is very capable to 750 yards with factory loads (if you know what to buy
). They don't make my ammo anymore, but I have a little stock-pile of it at home.
The 7mm STW is the 1000 yard massacre gun. It is just plain ole' dirty shooting 160 AccuBonds out of it. 1 ragged hole at 100 yards. Only thing holding it back currently is lack of funds for a long-range NightForce scope.
Of the 2 mentioned calibers I would have to recommend the 7mm Rem Mag if you don't feel comfortable with the .30-06 out to 500 yards. I have seen people shooting .30-06 hunting rifles with plain scopes and killing deer at over 500 yards. The caliber can do it, if the load, gun, and gunny are proficient.
And I think next on my line-up of long-range guns is gonna be a Weatherby TRR in .30-378 Weatherby Mag. They're hard to find, but bad to the bone!