BigDaddy, the Makarov is an excellent pistol, I got one about 8 years ago when they were a glut on the market. Paid 130 for a east german made one (considered the second best in quality, with the russian being the best). I would not have a problem recommending one for carry purpose.
The original 10mm loading, per FBI specs were over penetrating like the 9mm rounds were, but had better terminal ballistics.....
They decided to go with a lower powder charge and shortened the casing, thus the 40S&W was born. Minimal overpenetration with greater improved terminal ballistics vs. the 9mm.

-Bill Liptak