Extreme…even up to 375 grains (200 Griz, 75 steel BH adaptor, 100 gr. brass insert) up front for 28% EFoC, total arrow weight of 625 to 675 grains. Not that you need that for deer, but I like exit holes and abundant blood trails. This type of arrow setup provides me with a lot of confidence. My arrow trajectory is NOT greatly compromised with this setup. I would choose to error on the side of “too much penetration”. For me, there is no cost, just benefit. Come November, I like to be setup to shoot diagonally thru a 200# plus Wisconsin white-tail buck, should that be the shot angle.
Kris