Well you don't need much of a blood trail if they fall within sight of the spot where they were standing when they were hit.
Pass through? Yeah you'll probably get pass through using a 120 grain load, alright.
Granted deer down here are about 30%-50% smaller than you might encounter up where you live, but I get pass-through with 70 grains of 3Fg at 100 yards or less.
As I'm sure you know shot placement on the deer is the key. Here are the two places that I will aim and take a shot on a deer,...
View attachment 31733
And...,
View attachment 31734
The only tracking trouble that I had was once when the buck had been flushed from his mid-day hideout by some fox hunters, and he had just slowed down to a walk but was still jazzed-up with adrenalin when I shot him. So he went about 80 yards and then fell over. No blood trail. Pass through, though.
The only two tips I have for you, is a)
hunt all day; no break from the woods for lunch. This rings true the best on public hunting areas and places which adjoin public hunting land, and b) Mark where you stood when you took the shot with a cheap, easily replace, polyester blaze orange knit hat. Being able to look back and see where you stood when you shot is valuable in finding where the deer actually was standing when hit.
LD