One of the things that makes collecting damage numbers difficult is that monsters have varying levels of defense. This is most noticeable in Wolver Dens, where the Alpha Wolvers take less damage than their smaller brethren. Punching bags have very little defense. Danger Room monsters have more defense, as do higher tiered monsters.
Does anybody have an idea for measuring monster defense versus weapon damage?
Alpha wolvers take less damage than other wolvers? My impression (from many hours of collecting damage numbers, but I could be wrong) is that they take the same damage.
Alpha wolvers have more health than other wolvers, so more hits are required to kill them. Are you sure that you're not confusing more health with more damage protection?