This is an oldie but goodie. I haven't run across it before. I switched to a high FOC set up after I had a light arrow set up stop cold in a big buck shoulder back in 2017. It was like that arrow hit a 2x4. Never found the deer and he was reportedly seen a week or two later apparently in good health.
I made a 650 grain TAW with about 28% FOC using Grizzly single bevel broadheads. This I shot out of a 60# Mathews Heli M. 28" draw.
I shot quite a few does with this set up. Most were unremarkable since they were well placed shots. Those shots were so quiet and passed through the deer so effortlessly the deer hardly noticed. They usually just jump a short way, turn around to see what happened, then get wobbly and fall over. I did have one doe spin on me, and I hit her in the neck shoulder junction and exited behind her offside shoulder. The arrow then stuck up in a tree. That is the picture I use in my avatar.
My most dramatic kill was on a large bodied buck, my biggest to date. I was hunting a small property and the buck came by me at 12 yards broadside. I wanted to anchor him so I shot him straight up the leg, 1/3 of the way up the body. He never took another upright step. He went to run upon receipt of the arrow but his front legs no longer worked. His legs folded back under him and he pushed himself on his nose 20 yards off into a creek, and died there moments later. The 190 Grizzly broadhead had cut the offside leg bone in two. That arrow anchored that buck like a rifle shot.
I also pinned a large hog to a white oak tree with this set up. The hog wrenched himself free and made it off into a 200 acre impenetrable thicket of new growth pines and saw briars. I never did find him. After crawling around in there on hands and knees with a 44, I decided I might not be making the soundest decisions, lol.
I also have a lighter weight setup I run sometimes and it has no issues with deer. It is about 550 grains and runs the 125 Grizzly on a 100 grain steel adapter.
I run a similar heavy setup on my longbow. The wood arrows are about 700 grains with 190 Grizzlies or Tuffheads. I also have a carbon high FOC arrow for the longbow. 650 grains with 32% FOC. Flies like a dart and is nearly silent.
I hone these to hair popping sharpness.
I did a bone penetration test with the longbow. The bone with the broadhead in it pictured below is a fresh killed buck leg bone. That is a 650 grain arrow I just described shot out of my longbow. 56# at 28" Distance was 12 yards. Bone was free swinging. Arrow speed is about 160 fps. I thought that was pretty good performance.