I've never warmed to the AR-10. I'd much rather have a lightweight suppressed 5.56 SBR, and a .308 (or other caliber) precision bolt action rifle.
“There is no growth in the comfort zone.”--Jocko Willink
"You can never have too many knives." --Joe Ambercrombie
It also depends on how resistant your gut bacteria is.
I’ve seen one early production MRP that had profound issues. Started developing cracks.
Other than that, all I see is a bunch of people who buy LMTs, don’t shoot them and complain about cosmetic flaws like they are faberge eggs.
“There is no growth in the comfort zone.”--Jocko Willink
"You can never have too many knives." --Joe Ambercrombie
I have multiple S&W M&P 15s and one MP10. I was issued an M&P 15 until I retired as well. I’ve hunted with one or two of the 223s and the 308, which doesn’t compare to carrying a rifle in a combat situation but it’s as close as I hope to be. The 308 was manageable with a BFG padded sling but still I’d rather fight with one in 223/556. My 308 has a 3-9 scope and I’ve shot 12” plates at 600 yds with it easily, but it’s slower for me on say 50 yard and in work. Mt primary 223 had a 1-4 and now a 1-8 and is better for me for closer range shooting. We camp in what passes for remote areas in Ohio and have had issues prompting me to have a hunting rifle that can be used for gun fighting
My interest in a reliable, durable semi-auto .308 is more in the context of an all-around rifle than purely a fighting rifle, to include hunting of medium-to-large quadrupeds. 5.56/.223 can do the job with judicious ammo selection and good shot placement, but in my observation, the larger calibers do better. So I could see the attraction in a truly reliable, durable .308 as a general purpose rifle to serve all needs including taking down medium-to-large animals.
Far more concerned with food/water/first aid and a lack of reasoning expressed by other citizens.
For a rifle, AR15 all day long, with a suppressed .22LR upper in the backpack.