Hmm....
Been watching enough telegram footage of the current conflict, indirect fire was 70-80 percent of the early casualties. That being replaced rather rapidly with loitering munitions in the shape of small drones. All rifle fire is being served rather well with whatever is currently available.
We love fighting the last war, admittedly because the last time we did well was before living memory. Kinda caught up in a hybrid of what made us win in ww2 and lessons from the 20 year expedition we had post 911. I'd surmise the list of countries that require us to have a similar in theater response like Afghanistan allowed that doesn't entangle a peer power is short.
Seeing what drones are doing to create the near trench warfare, the 6.5 vs 308 for a sniper rifle seems like arguing over what horse is best for the calvary after the machine gun....