We seem to be generating more heat than light on this issue, but it is very important. You can do everything else right, but if you are defending your life and your chosen cartridge fails to stop your attacker (or attackers) you have had it.
Close quarter fcombat with firearms is stressful, frightening and confusing. You need every odds improving advantage you can get.
I suggest the best cartridge to use is the most powerful one that you can conteol in rapid fire. You have to determine that for yourself. Neither I nor anyone else can tell you what that is. If this is a 9mm, fine. That's the best choice for you. If you can handle a more powerful round go with it, but remember, you have to be able to control it under really bad conditions.
Close quarter fcombat with firearms is stressful, frightening and confusing. You need every odds improving advantage you can get.
I suggest the best cartridge to use is the most powerful one that you can conteol in rapid fire. You have to determine that for yourself. Neither I nor anyone else can tell you what that is. If this is a 9mm, fine. That's the best choice for you. If you can handle a more powerful round go with it, but remember, you have to be able to control it under really bad conditions.