I can go with what Shot1 said but would like to add a preference for cast semi-wadcutter or fmj-swc slugs in the 230 gn range at around 900'/sec. I use a Mag-Tecg 230 gn fmj-swc or a 238 gn cast Lyman 452423 and, either slug over your choice of powder to get it accurately to 900'/sec, will easily do the job you ask for; and this load is not as heavy as the last one I used to take a Whitetail at about 40 yds.
Many of us prefer hardcast slugs with either large metplats or sharp shoulders, or both if we can find them, as we find they penetrate through more cleanly than many soft or expanding nose slugs. They also penetrate pretty straight on through major bone structures where soft nose slugs may well glance or slide off heavier bone and cause a non-fatal wound.
That being said, for the 45 acp just about any carry load that launches a 200 gn slug to about 1k'/sec or a 230-240 gn slug to about 900'/sec, as long as it isn't round ball and has some sort of a metplat, should suffice for Whitetail within a 50 yd range if you can place the shot where it should go. jmtcw.