Provided that load groups, shoots clean, and you don't have any difficulties casting the bullet, I'm seeing NOTHING there that needs to change. My last deer dropped in his tracks and his heart was slightly more blown up. . .but that was with a 130 grain Barnes out of a .308 that struck at around 2600 fps. My more common experience is that they take about ten seconds for the brain to get the memo that no more blood is forthcoming. Really, what you have is about as good as it gets - and with no meat damage. Well done!
I segregate my range scrap by jacketed, shotgun slugs, and other people's cast for sake of consistency - - the jacketed cores are therefore starting a little softer than your 11 BHN, and my pistol alloy has recently become 20 pounds of that to 4 ounces of tin when the pot gets switched on - sometimes adding more if the fillout isn't good. Functionally, though, I think our metal is in about the same place. If you're getting good fillout with straight range scrap, I'd say you hit on a lucky mix, and my only caution would be not to count on that with random scroungings.