The Winchester USA 5.56mm NATO 62gr FMJ ammunition (Winchester part no. WM8551000) ships as a 1000-round case for shooters who go through ammunition in volume. Each cartridge pairs a 62-grain full metal jacket bullet with a brass case, loaded to Winchester’s USA target and practice standard and made in the United States. It suits carbine classes, steady range days and high-volume practice with an AR-pattern rifle. Buying a full case keeps a long stretch of training supplied from a single order.

Key Specifications

• The cartridge is 5.56mm NATO, the military-pattern chambering used by AR-15 and M4-style carbines.
• Bullet weight is 62 grains, a heavier projectile than the 55-grain loads many shooters use for basic plinking.
• The bullet is a full metal jacket, a jacketed non-expanding design made for target and training use.
• The case is brass, a material that feeds and extracts smoothly and can be reloaded by those who reload.
• Quantity is 1,000 rounds in one case, which covers a long run of range sessions.
• Country of manufacture is the United States, a detail many buyers look for in bulk training ammunition.
• Intended use is range and target practice, the role Winchester’s USA line was built around.

Frequently Asked Questions

Can I shoot this in a rifle chambered in .223 Remington? 5.56 NATO runs at higher pressure than .223 Remington. It is safe in rifles marked 5.56 NATO or .223 Wylde, and it is not recommended in a tight .223 Remington chamber, so check the marking on your barrel first.

What bullet and case does this load use? It uses a 62-grain full metal jacket bullet in a brass case, a configuration meant for range work rather than hunting or defensive use.

How many rounds come in the case? The listing is for one 1000-round case of Winchester USA 5.56mm NATO ammunition.

Buy the Winchester USA 5.56mm NATO 62gr FMJ Ammunition, 1000-Round Case

When a training schedule calls for hundreds of rounds at a time, a full case saves reordering and keeps your supply steady. Browse Winchester‘s full line and more rifle ammunition from our Lubbock, Texas gun shop, shipped directly to you with fast, insured delivery.