Of these, the .223 and the 7.62x39. Of the ones you didn't list, the 308 with reduced loads using H4895.
How much have you backed off on the 308 loads w 4895 & what bullet have you favored?
You can cut charges to 60% of max. More information at
https://hodgdonpowderco.com/wp-content/uploads/2023/04/h4895-reduced-rifle-loads-2.pdfGetting 30-30 speeds with 165-grain Remington CoreLokts and 170-grain Speer flat points is pretty easy. I've tested 36.5 grains in four rifles with 22" barrels and two rifles with 20" barrels. 2,200-2,250 is common about right for the 22" barrels and about 2,150 for the shorter barrels. I don't think that the CoreLokt would expand at speeds much slower than that, so I only use it for practice. I don't think that the Speer will hold together at speeds much faster than that, so that's as hard as I push it.
Accuracy is usually 1-1.5 MOA, but was much better in a couple of rifles.
All of the rifles that I tried were set up for use full-power loads, so they have modern stocks with good recoil pads. The lightest of them weighs about 7.5 pounds, so recoil was pretty mild with these loads.
Okie John