I don't know much about the Ace Express 165 grain so I cannot comment on it.
However, using 160 grain Snuffers and a 68 pound longbow, I've gone completely through the rib cages (and further) of big black bears, big bull caribou, and big Canadian whitetail bucks.
Although I have killed bull moose with the same setup, I prefer using two blades when moose hunting for extra penetration in the event of a quartering away shot, etc.
This year I got a complete pass through on a huge black bear quartering away. The snuffer went through the rib cage and then through the opposite shoulder (but didn't hit the bone). I shot the bear at very close range though. I posted the picture and story here in early June under the title "natural ground blinds and black bears".
I have since moved on to a different longbow, but still really like Snuffers and use them whenever I think I should. Strength, straightness, consistency in manufacturing, true weight, ease of sharpening, and last but not least size of wound are reasons why I do.
I am repeating myself from one of your previous threads but just keep away from the shoulder and you won't have a problem with your setup.