I'll chime in.
And, I'll leave my Black Powder rifles out of it.
I have a couple/few
Three of them are chambered in 308.
My most accurate one is this.
The 12 F/TR is built for long-range accuracy and competition with a 30" full-profile barrel, adjustable Target AccuTrigger, and single-shot Target Action.
savagearms.com
With one of these on a 20 min base.
Built for precision target shooting applications up to and exceeding 1000 yards. The Sightron SIII 10-50x60 Long Range rifle scope with Zero-stop delivers superior optics and accuracy when it counts.
sightron.com
I use a Sierra 175gr. MK, Lapua or lately Starline SRP prass
Powder is around 43gr. of Varget or IMR4064
I have an early DPMSLR308T with a 20 inch Creiterion barrel
It wears a discontinued Weaver Tactical 4-24 50mm scope.
308 loads are pretty much the same as the Savage.
I built a Rem 700 rifle
The action sits in a Houge stock.
i trued the action on my lathe and installed an Air Gauged 24in barrel.
It has bottom metal to accept ACIS 10 rnd mags.
It wears a discontinued Nikon FX1000 scope
It wouldn't shoot 175grn MK worth a shit.
I got some of the 177grn MK and it likes those
There's so much stuff that's the latest and greatest.
Then you look again, and it's gone.
Beware the man that owns but one rifle