Nearly every police agency that used Beretta's has trashed them and gone to other handguns, usually in larger calibers than 9mm. Most departments are now using .40 S&W or .45 ACP in their semi-autos. A fair number of departments still use wheel guns (revolvers) in .357 magnum.
This is not to say I advocate ball for carry in a .45acp. I most strongly reccommend hollowpoints as they are less likely to overpenetrate. Overpentration is not so severe a concern in a military situation as it is for a self-defense situation.
Stay well - Stay safe - stay armed - Yorktown