I've seen a few videos online, around 3-4 approximately of Winchester Ranger failing to expand, in ballistic media and jugs. Now I know it is not human flesh, but his gelatin tests are pretty close to FBI spec. The Winchester Ranger has such a shallow and tough hollow point compared to something like the Gold Dot.
I know a lot of guys carry the 127 +p+ and even this round failed to expand.
Here are the videos for refrence,