When purchasing a firearm, it's best to read the owner's manual. If you did not get one with the firearm, then contact the manufacturer. Many firearms look alike, yet function differently. Improper ammunition in the firearm could result in serious injury and/or death. Keep in mind that 9mm Luger does come in different powder loads (usually described as "P", "+P" and "+P+"). If your firearm is not rated for the higher pressure ammo, your firearm could explode when you shoot it.
As for your personal defense ammunition, I consider it a personal choice. With that in mind, be sure that you choose appropriate ammunition for personal defense. If using the ammunition for self defense, be sure the bullets are expanding (Jacketed Hollow Point - "JHP", Jacketed Soft Point - "JSP", etc.). You shouldn't use "Full Metal Jacket" (FMJ) or "Lead Round Nose" (LRN) ammunition for self defense, as those rounds may over penetrate and cause damage to people or property behind your target. Be sure to fire a box or two of your personal defense ammunition through your firearm periodically to ensure that the firearm will function properly and to ensure that you can hit your target with the defense ammunition. Some firearms are finicky on ammunition and may malfunction.
Just a couple of the many things to consider when deciding to CC. Welcome to the site. Good luck!
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