A Beginner's Guide to How Ammo Works

If you're new to firearms, you're also new to ammo. Need a primer? Watch this latest Smith & Wesson GUNSMARTS video hosted by shooting champion Julie Golob.

posted on June 14, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **

New gun owners tend to focus on their newly acquired piece of hardware, which is designed for their personal safety, for recreational shooting—or both. It's an awesome moment when they realize they've joined millions of other law-abiding Americans in exercising their Second Amendment rights. As such, their first goal is usually to make sure they learn to shoot safely and properly—all noble endeavors. Beyond the basics of pistol operation, however, is the equally important topic of ammunition. If you are a new gun owner, or are among those who take what you put down your barrel for granted, this new video in the second season of Smith & Wesson GUNSMARTS series is for you.

In “How Does Ammo Work?” Smith & Wesson pro-shooter Julie Golob offers a crash course in ammo lingo—for instance, what exactly is a bullet versus a cartridge? How does a bullet make its way out of the barrel? The type, size and weight of the ammunition also plays a huge role in how the gun feels when you pull the trigger—otherwise known as recoil. And of course, understanding the difference between center-fire and rimfire ammo is critical. There are many other things to know, too. So if you’re just getting started and feel the need for an ammo primer, check out this latest video in the new GUNSMARTS Series 2.

Latest

Women For Gun Rights Academy 2026
Women For Gun Rights Academy 2026

Women for Gun Rights Hosts Ladies Summit

The event, attended by top social media personalities, was designed to introduce women outside the traditional firearms industry to hands-on education rooted in freedom-based values and personal responsibility.

Team Colt's Jalise Williams Victorious at 2025 World Shoot

Williams earned Classic Overall Ladies and Overall Team Champion, and also finished 14th Overall in the Classic Division—the highest placement ever achieved by a woman in Classic Division competition at a World Shoot.

Considerations for Concealed Carry in the Workplace

The odds of you needing to use your concealed carry pistol at work are relatively low, but nonetheless, if you are allowed to carry in the workplace, you must be especially vigilant to follow all the rules.

Review: The Heritage Coachwhip Double-Barrel 12-Gauge Shotgun

This classically styled side-by-side features exposed hammers and a case-color receiver.

New Guns 2026: Henry Repeating Arms Explorer Carbine

Available across the company’s most popular center-fire platforms, the Explorer Carbine draws inspiration from the rugged landscapes of the American Southwest.

How to Shoot Around Cover

Cover is always a good idea in an armed conflict, but you must know how to use it correctly.

Women's Interests



Get the best of NRA Women delivered to your inbox.