https://www.snipercountry.com/10mm-vs-45-acp/ I know a couple guys that bought 10mm glocks over the last couple of years for bear defense while hiking/fishing. None of them have had to use them. Ive read some ballistic info on the 10mm. It looks like it has a slight advantage on paper. I also watched a show a couple years ago where they compared 45acp and 10mm in ballistic gel. The 10mm penetrated 6"+ deeper but it could have been bias. Who know who funded it and I cant remember what different ammo they used. I have faith in my xd 45 still though.
