5.56x45 - 62 Grain FMJ M855 - Winchester - 600 Rounds

77 Ready to Ship


1 Review(s)

Ammo Overview

Ammo Quantity - 600 rounds per case; 150 rounds per box
Ammo Manufacturer - Winchester
Projectiles - 62 grain full metal jacket (FMJ) M855
Ammo Casings - Boxer-primed brass
Muzzle Velocity - 3,060 fps
Muzzle Energy - 1,289 ft lbs


Six hundred rounds of the ammo AR-15 owners need to have a really good time at the range! Winchester 5.56x45 M855 is loaded at the same factory which produces ammo for the U.S. Armed Forces, so it’s up to whichever application you might have in mind for it.

This cartridge’s bullet will attract a magnet. That’s because the 62 grain FMJ’s core possesses a solid steel penetrator tip, a feature which ensures clean penetration through 1/8” thick sheet metal at ranges up to approximately 650 yards. The bullet’s added heft gives it greater long-range accuracy (for best results use a 1:9 or 1:8 twist barrel, although you can certainly get away with a 1:7 twist).

This ammo’s brass cases are in mint condition, even if they are discolored. The grayness you see is simply the result of the heat-treatment procedure which fortifies brass. Non-corrosive Boxer-primed 5.56x45 ammo like this is just what you want for handloading projects!

  • Reliable?:
  • Performance:
  • Bargain?:

(1) Review

Add yours

Write Your Own Review

You're reviewing: 5.56x45 - 62 Grain FMJ M855 - Winchester - 600 Rounds

How do you rate this product? *


Our customer service team has published this Q&A information as a free service to the shooting community. Please note that BulkAmmo.com expressly disclaims any and all liability with regard to how the shooting community might use this Q&A information. See Terms of Use for more details.

Posted On: 4/20/2022 By: Pastor Chris

A: Thanks for reaching out Pastor Chris! Shipping times depend on our customer's proximity to our Indianapolis warehouse, and typically range from 1-5 business days. In general, orders placed before 2pm CST on a business day will ship that same day and you will receive a confirmation of shipment at that time. All orders placed after 2pm CST or on a weekend or holiday will be shipped the following business day.

Post your question
  • Please enter your name as you want it to appear on our site.
    Please tell us where you want the answer sent (it will not appear on our site).

* Required Fields