I lost 2 deer, but I have killed a few others. As far as a bow shot....I didnt say I didnt see the arrow. I shoot yellow and white vanes with chartruse nocks. Very effective at dusk and dawn. I saw the arrow go through the chest broadside and with muzzy's, the snapping of ribs is a distinct sound.
The muzzleloader was a different story...i saw a running deer through a cloud of white smoke, something i hope is not typical. That was my first muzzleloader hunt. The animal was at 30 yards in my scope and I shot him high on the point of the shoulder. I should have taken a neck shot.
If I was banging away at 300 yards with a .308, I would be far less certain of my shot placements. I take the blame, but I also blame the gators...if it wasnt for them, i would be neck deep in the muck looking for my deer.