I like H4895 a lot, but that's sort of a moot point now that it's become unicorn dust. I've pretty much entirely replaced it with Accurate and VV powders in cartridges I'd been using it in.
I did use it for reduced loads in 308 Win, but like you, found it got erratic well before that 60% point big H says can be used safely. For me 75-80% of max was the sweet spot for accuracy and recoil when backing it off with a few different bullets.
