I've been a sole .40 owner until today. I picked up a Sig P938. Now I need to learn 9mm ammo. For practice ammo it seems 115gr is far an away the most common but when it comes to carry it's all over the dang place. 124gr, 147gr, regular, +p, +P+... It's making my head spin. Given the size of the gun recoil does need to be taken into consideration. This wil be a BUG duty gun and primary off-duty piece. Ammo will either be Gold Dots or HST and very possibly both so whatever you recommend needs to be available in those rounds. Thanks for the help guys. Wanna kill these ads? We can help!