Uncle Sam-Bear your Arms!
New member
What is the "Best" grain ammo to carry in a .40 & 9mm for Personal Protection (Stoppage) & why? 

It's all about what performs well in your personal firearm(s). I can't comment on the .40 but in 9mm I carry Speer Gold Dot 124+P or Federal HST 124+P. The reason why is that they run reliably and perform very well through personal testing.