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

Deering How Not To Shoot Truck
Deering How Not To Shoot Truck

How to Not Shoot Your Truck

It happens more often than you think—someone shoots their own truck while sighting in a rifle. Why?

NRA Women's Leadership Forum Spurs & Sisterhood Online Auction: Patrick Mavros Jewelry

You can soon be wearing these stunning pieces of African silver jewelry—a staple at the WLF auctions for many years—if you are the high bidder!

The Armed Citizen® Reload April 10, 2026

Two men each had only one leg to stand on after choosing to attack armed women.

NRA Women's Leadership Forum Sisterhood & Spurs Online Auction: Concealed Carry Bags

Check out some of the amazing bags—many of which have opening bids of around $20—that some lucky ladies will take home if they are the high online bidders!

New Guns 2026: HK VP9CC Micro-Compact Pistol

Made in HK's Oberndorf, Germany, factory, the new concealed-carry pistol comes equipped with friendly ergonomic features.

Gun Tote'n Mamas Partners with Charter Arms

The collection includes the Clutch Concealed Carry Purse Distressed Buffalo, released in December 2025.

Women's Interests



Get the best of NRA Women delivered to your inbox.