What Is the Best Home Defense Ammo for AR-15 ?

Published on July 7, 2022
Duration: 4:30

This guide, informed by Kevin Michalowski, Director of Content for USCCA, details the best AR-15 ammunition for home defense. It emphasizes understanding chamber differences between 5.56 NATO and .223 Remington, the effectiveness of 55gr bullets at short ranges, and the terminal performance of FMJ and polymer-tipped rounds. The guide also highlights frangible ammunition as a safer option to mitigate over-penetration risks.

Quick Summary

For AR-15 home defense, understand that 5.56 NATO chambers safely fire both 5.56 and .223 rounds, unlike .223 chambers with 5.56. Standard 55gr bullets are effective at short ranges, and both FMJ (tumbling) and polymer-tipped (expansion) rounds offer terminal ballistics. Frangible ammo minimizes over-penetration risks.

Chapters

  1. 00:00Introduction & Gun Giveaway
  2. 00:22Chambering: 5.56 vs .223
  3. 01:10Bullet Weight & Distance
  4. 01:55Bullet Types: FMJ vs. Polymer Tips
  5. 03:02Frangible Ammunition

Frequently Asked Questions

What is the primary difference between 5.56 NATO and .223 Remington chambers for an AR-15?

A 5.56 NATO chamber can safely fire both 5.56 NATO and .223 Remington rounds. However, a .223 Remington chamber is designed for lower pressure rounds and may experience dangerous pressure spikes if fired with 5.56 NATO ammunition.

Which bullet weight is generally recommended for AR-15 home defense?

For typical home defense distances (short range), standard 55gr bullets are highly effective. While heavier bullets like 75gr are better for long-range wind resistance, they are less critical for close-quarters engagements.

What are the benefits of using frangible ammunition for home defense?

Frangible ammunition, often made of compressed copper, is designed to disintegrate upon impact with hard surfaces. This significantly reduces the risk of over-penetration through walls, minimizing collateral damage while remaining lethal against soft targets.

How do FMJ and polymer-tipped bullets differ for home defense?

Standard 55gr Full Metal Jacket (FMJ) rounds tend to tumble and break apart upon hitting a target. Polymer-tipped rounds, like Hornady V-Max, are engineered for more pronounced expansion and energy transfer.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from USCCA

View all →