Just one thing, the .257 Roberts is a 300 yard + gun, properly loaded, of course.
I turned down a .25-06 I won, well, actually I traded it for a .308 I really wanted because I figured my .257 had .25 caliber covered.
I see lots of redundancy in stuff like .30TC. Heck, Savage pretty much had THAT niche covered with the .300, let alone when the .308 Winchester came along. The short magnums, there are some new good ones, but they're mostly about short action handy hunting rifles rather than ballistics we've never seen before. Not every new caliber is an improvement. In fact, 99 percent of 'em are redundant IMHO. There's some new stuff that raises my eyebrow for some applications, but I ain't selling any of my older guns. I'd be perfectly happy with a caliber .30 model of 1906, tell ya the truth. It'll take anything I'll ever get to hunt and do it to as far as I want to shoot at game. I have a 7mm Rem Mag I never use as it is.
Yeah, the .30-30 has been eclipsed. I guess that's why you can't find .30-30 ammo anywhere, but Bass Pro and they don't make any new guns in the caliber anymore?
No, it can't shoot 2400 yards and hit a deer, but then, I can't see 2400 yards. Most deer I've ever killed in my life have been under 150 yards and the .30-30 will do that. I mean, you can always get closer if you're a hunter, right? It's not the greatest caliber out west, but I've seen more'n a few toted in the New Mexico mountains. That said, I have never been into lever guns that much. I had a .30-30 Savage M340 that was REALLY accurate and I loaded spitzers in it (box magazine) It was a true 300 yard deer rifle with spitzers. I currently load the Nosler BT in my .30-30 Contender.
I did follow the above scenario I suppose, though, LOL. I sold the .30-30 to an Uncle and later got a .308, a step up in power and just about right IMHO.
But, I know the .30-30 can do the job. It's not like no one buys 'em anymore, either. I'm as guilty as anyone of stuffing my nose into exterior ballistics tables. That's really a bad habit for a hunter, I guess, especially when your longest possible shot is maybe 200 yards, LOL!