So I think I'm pretty set on a Baby Eagle for a HD/target pistol. Previously I was looking at the Walther PPKS, but since they are at the same price point I figured I'd go with the bigger one bc I have fairly big mitts and I'm not worried about concealment. My big question is which caliber would be best for my aforementioned wants? The 9mm or the .45 ACP? I'm trying to limit overpenetration as I live in an apartment complex, however I want nothing large enough to get the job done quickly.