[bleep], you don't need to spend the money on Buffalo bore ammo to shoot elk with a 30-30. I personally prefer anything in a 338 but I hunted for years with a 30-30 and work for an indian tribe where I've seen numerous bison dropped with a 30-30 using 170grn bullets at 150yds or less. One big bull took 3-shots to anchor, but he was wounded prior during roundup and he wasn't providing much of a shot.
I know that isn't the answer you are looking for, but a couple off well placed shots and you'll be fine without spending the extra money.
