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๐Ÿ“ŒAmmunition 101: Calibers, Types & Tips for New Gun Owners

07/09/2025

๐Ÿ’ฅ Ammunition 101: Everything New Gun Owners Need to Know

Let’s face it — walking into an ammo aisle for the first time feels like staring at a foreign language made of numbers, acronyms, and brass. Don’t sweat it — we’ve all been there. This guide breaks it down for you like a range buddy who’s part instructor, part stand-up comic.

๐Ÿง  First Things First: What Is Ammunition?

Ammunition is basically a mini rocket for your firearm. It's what your gun eats, and if you're not feeding it the right stuff, you're gonna have a bad time.

Each round consists of four main parts:

  • Case (usually brass or steel) – the shell that holds it all together
  • Primer – the spark plug
  • Powder – the boom maker
  • Projectile (aka bullet) – the part that says hello to the target

๐Ÿ”ข What the Heck Do These Numbers Mean?

Ever seen “9mm Luger,” “.45 ACP,” or “.223 Remington” on a box and thought, “Cool, but what do I need?”

Here’s a quick cheat sheet:

Caliber

Best For

Common Guns

9mm

Self-defense, range

Glock 19, Sig P320

.45 ACP

Slower but powerful

1911, HK45

.223 / 5.56

Rifle ammo

AR-15

.22 LR

Beginners, plinking

Ruger 10/22, Walther P22

๐Ÿ‘‰ Pro Tip: Your gun manual or slide will tell you exactly what caliber it needs. Don’t guess. Guessing with ammo is how guns turn into paperweights.

๐Ÿ†š FMJ vs Hollow Point — What’s the Difference?

Let’s break it down real simple:

  • FMJ (Full Metal Jacket):
    • ๐Ÿ”ซ Range ammo
    • ๐Ÿง  Cheaper
    • โŒ Not great for self-defense
  • Hollow Point (HP):
    • ๐Ÿ›ก๏ธ Designed for self-defense
    • ๐Ÿ’ฅ Expands on impact
    • โœ… Stops threats quicker

๐Ÿ’ก Stock up on both: FMJ for practice, HP for carry/home defense.

๐Ÿ›’ Shop FMJ & Hollow Point Ammo

๐Ÿงผ Clean Ammo In = Clean Gun Out

Dirty, low-quality ammo may save you $3 today but will cost you a cleaning headache later. If your ammo looks like it fell out of a swamp, skip it.

Stick with brands like: Federal, Speer, Hornady, Winchester, or PMC.

๐ŸŽฏ How Much Should I Buy?

A good starting point for beginners:

  • Range day: 100–200 rounds of FMJ
  • Home defense: 25 rounds of hollow point (keep a box in your safe)
  • Training: Grab in bulk = save $$

๐Ÿ’ฐ Bulk Ammo Deals Here

๐Ÿ‘€ Bonus Tips for Ammo Storage

  • Store in a cool, dry place
  • Use ammo cans or sealed containers
  • Label your boxes like you’re running a mini armory

โœ… Quick Recap:

  • Know your gun’s caliber
  • Use FMJ for training, HP for defense
  • Buy quality ammo — your gun (and hands) will thank you
  • Stock up smartly and store it right

๐Ÿ”— Internal Links for You:

๐ŸŽค Final Words

Learning about ammo doesn’t have to be complicated — or boring. Think of it like fuel: Use the right type, keep your tank full, and don’t buy the sketchy stuff from that guy in the alley.

๐Ÿงข Need help choosing the right ammo for your firearm?
Come visit us at The Riot Firearms or shop online anytime.

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