It’s not obsolete, and it won’t become so in America until do firearms as a whole.
I was a huge fan of the 7RM for a long time. Admittedly, I became a little turned off on it when 7RM sales boomed in the early 2000’s simply due to mistaken identity when articles extolling the cross-canyon elk hunting prowess of the 7mm Remington ULTRA Magnum hit the presses, but I remained a dedicated fan to the 7RM until about 6-7yrs ago. I have also been a 30 cal magnum fan for a long time, but favored the 7rm over the 300wm for lesser recoil. But those years ago, I really decided the 7rm didn’t fit my paradigm, and likely never did. For any of my in-state hunting, Kansas, I ALMOST never need anything larger than a 6mm Creedmoor/243win/7-08 class rifle. Arguably, elk hunts here are rare enough to constitute an out of state hunt, OR the elk are typically small enough to still be tackled with ease by a 7-08... and frankly, I no longer put in for Elk in Kansas, because better tags can be drawn out of state. Then going OUT of state for anything larger than deer, I trust a 300wm more than I trust a 7RM to offer the added insurance I prefer. For long range plinking, equally, if I’m reaching past a 6 creed or 7-08; reaching past a short action cartridge; then I also reach past short action magnums and past the 7RM for at LEAST a 300wm, and in the modern state, at least for a 300PRC. I REALLY want to show love the 7RM still, and equally for the 300WSM and the newer 6.5 PRC, but I really just don’t have a hole in my life I find them to fill. If I lived in a state where bear and elk were annual fodder in my back yard, with far lower total cost invested into the hunts, then I’d still prefer a 6.5 PRC or a 300WSM over a 7RM today, but alas, I’ll never live in such a place, so today, my 7RM’s are lonely.