I shoot 70 grains of 2f under a 495 roundball patched with commercial pre-lubed Basspro patches. This is a very good deer load and I have killed many deer with it. I do not load newcomers the same way I load my gun and I will explain why. Most people hunt on public ground where there are other hunters around. A typical roundball deer hit thru the boiler room will make a mad dash of around 50 yards and pile up. Some a little farther, some a little less. My flinter buck went about 200 yards and was gone before the smoke cleared. Roundball is notorious for not producing blood trails for some yards from the site of the shot. On public ground, a deer that goes over 100 yards and leaves a trail that takes time to figure out may lead to another hunter either shooting or claiming the animal before you find it. It can also lead to lost game. In a newcomers gun I usually load a 385 Hornady Great Plains hollow base hollow point bullet. When they hit thru the boiler room, the deer usually drops on the spot or within sight. They are accurate in most guns. After the newcomer has killed a deer or two and has had time to spend on the range shootng roundball and learning his gun, then I tend to push them towards roundball for hunting. My flinter buck went 200 yards thru a dense tangle and I never did find a drop of blood. I found him because I am too stupid to quit and I was lucky. In a public ground situation, that could have been a disaster.
Roundball is historically accurate. It is a great deer load, even with modest powder loads. It doesn't kick bad, and is cheap to shoot. If you can track well or are hunting with someone that can on private ground, maybe it is the place for you to start. I prefer to get the person comfortable with muzzleloader hunting and then move them on to roundball.
Warning! The 385 over 100 grains of 2f will kick pretty good. If you are recoil sensitive, go straight to the 70 grain roundball loads. Just learn your gun well before season.