Too much penetration with a 10 mag. 9mm Gold Dots in a Sig P229 with a spare mag.
It’s all about ammo selection. I have some 220 grain solids that will shoot through a dear, long ways. I also have high velocity low weight hollow points that will dump twice the energy as a 9mm with similar penetration. You have to be careful with 10mm ammo selection, because of the velocity, you can overdrive some hollow point ammo leading to excessive expansion and inadequate penetration.