Makes a bigger difference where you're hunting.
Even out west with long range opportunities, a 6.5 PRC vs .270 vs 7RM vs 7PRC vs 280AI vs 28 Nosler vs .308 vs 30-06 vs 300WM vs 300 PRC vs 30SM vs 30Nos vs 338....
Most of those have high-BC options. Some just need some throating work. And/or a different faster/lighter powder charge and deeper seating. But they'll all get the job done way, way, way, out there for 90% of the game in North America. Elk need a bit larger, but again, it doesn't even really matter "which larger" ... just pick something in the top 1/3 of options of recoil that you're happy with.
Thinking more on it, honestly, recoil becomes more a factor in choice that just about anything after that. 7 SAUM vs 7RM vs 7PRC? Meh. 300WSM vs 300WM vs 300 PRC? Meh.
The old-school 30-06 throated long with high-BC bullets and new powders really are very, very, very good, breathing new life into that cartridge. (And while 130gr TTSX monos @ 3400 is fun out of it, a higher-BC 175 LRX (0.508 G1) @ 2800 for Barnes Vor-TX is still going to be extremely effective out to 700 yards before the velocity drops below 1600fps and expansion starts entering: 4DOF)
Oh, and because I know I've got people out there waiting to jump on the 7mm wagon ... yes, I get it, but hold up ...
175 gr Nosler Partition's BC is ... 0.519 G1. Thus, a 175 LRX out of a 30-cal (0.508) is almost identical to a 7mm 175 Partition in terms of BC, and this is traditionally the "reason to go 7mm." (And while it's 2950 Partition vs 2800 LRX, it's at the cost of powder/recoil because that's comparing an '06 to a 7RM.) You're going to need to be shooting
PAST 700 before the 7RM really comes into play if you're using Partitions.
169gr 7RM ELD-X from Hornday .631 (G1) @ 2940.
175gr 7PRC from Hornday? .689 (G1) @ 3000.
Even a .270 running monos (Barnes LRX 129gr 0.463(G1)) and modern powder is going to reach way out there. (O'Connor's 270 was 130gr @ ~3150 without the advancement of newer powders, high-BC bullets, or partition/mono technologies, and he was ready for 500 yard shots...)
That Barnes Vor-TX is 129gr @3140 with a mono, so good to 800 before dropping below 1600 for good expansion (4DOF), and won't frag/explode like the old bullets. Is 129gr @1600 enough for elk? (IMO, marginal, but with good/lucky placement it would get the job done ... a 30-30 with Winchester 150s starts at 2390, and hits that velocity about 200 yards out, just as a point of reference.)
I get it - new shiny. My last build was exactly that. But we're all chasing expensive F1 builds and tech "just in case," and that most will never actually use, because, hey, new shiny. And it's fun. And it's unneeded. But it's fun. And expensive. But fun.
End of the day, be sure to recognize that 95% of the time,
hunting, it's not needed or likely to even get used because most are not shooting animals out
past 700, 800 yards in the first place, and it's just fun blowing money on this stuff.
Yes, I own a 30SM. But it's fun-shiny and shoots 208 LRX (0.633 G1) at 2950, which is good to 1100. You know.
Just in case.
Now we wait for the 338/375/+ crew to chime in about "1100, that's cute... "
=)
Cheers,
-mox