Nope, I have used the 55grn Silvertip. I believe the 55grn to be the best compromise between bullet weight and "safety". I am constantly reading "regurgitation" of what Troy and others have said about these rounds. I am not challenging Troy's expertise, or anyone elses, but in an environment where you have neighbors near by, like through the next wall, these rounds are probably the best choice. 3-5 torso hits with these rounds in rapid succession will most certainly do the trick, if incapacitation is your goal. Please keep in mind, 75grn TAP will not instantly cause an opponent to vaporize. The reason that Winchester/Hornady manufacture these rounds in thier LE lines is because LE agencies use them/buy them. Both the citie's "SWAT" team and both county ERT's use 55grn TAP. Considering both agencies, and others have smoked base heads with these rounds, I'd say they do just fine.....
Clearly, the "seventy" something grain bullets offer the best terminal ballistics, but even they are a "compromise" for bullets in the 100grain range, which are even better yet. So, why doesn't everyone use magazine length 100 grain bullets for HD? Defensive weapons are all about compromise....there isn't a conventional rifle bullet that kills like the .50 BMG, but they don't seem to very popular for HD guns, atleast around here. I'm sure there is some Arkansas yahoo who was one in his yard on a pedestal mount, but around here, not so much. Penetration, for some, is a serious issue and something that must be addressed. Having a caviler or "I'd rather be alive and in jail" attitude isn't very bright. Id rather be dead, then be in jail for killing someone's toddler because in the heat of the moment I missed and my "heavier" than necessary round had enough retained mass to penetrate a skull. There are no "safe" bullets, thats nonsensical. Gunshots aren't supposed give you a tickle and a smile. There is no safe, only safer. There is responsible ammunition selection and mitigating possible damages in the event of a lethal encounter. To dismiss these rounds as a whole for defensive use is ignorant.
I don't use a carbine for HD, but I do keep HK 93/STANAG magazines loaded with 55grn TAP, which I use instead of Winchester. Geographical convieniece has aligned me with the good people at Hornady, so I am able to get it cheaper than Winchester. LE agencies all over the country are using this type of ammo, because of overpenetration concerns. Shot placement is everything. There isn't a .223 round that won't penetrate a neck/head at accross the room distances. Practice the failure drill and be smart.