Winchester USA M193 5.56x45 NATO 55gr FMJ 20 Per Box
$17.99
$13.49
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Military-Spec Performance for Your Modern Sporting Rifle - Winchester USA M193 5.56x45 NATO 55gr FMJ delivers authentic mil-spec performance with the reliability and consistency that has made Winchester 'The American Legend' for over 150 years.
Winchester Winchester Repeating Arms Company, founded in 1866, is an iconic American ammunition and firearms manufacturer known as 'The Gun That Won The West.' With over 150 years of innovation, Winchester has supplied ammunition to the U.S. military, law enforcement, hunters, and sport shooters worldwide. Their USA line represents affordable, American-made ammunition built to deliver consistent performance for high-volume shooters.
M193 is manufactured to military specifications with 5.56 NATO pressure levels, which are approximately 10% higher than commercial .223 Remington. It's safe to use in any rifle marked for 5.56 NATO, but should not be used in rifles marked only for .223 Remington.
The 55-grain M193 projectile performs optimally in barrel twist rates of 1:12 or faster (1:9, 1:8, 1:7). Most modern AR-15 rifles with 1:7 or 1:8 twist will shoot this ammunition very accurately.
While FMJ ammunition is legal for hunting in some areas, many states prohibit FMJ bullets for hunting game animals. Check local regulations and consider soft-point or hollow-point ammunition designed specifically for hunting.
M193 is effective for target shooting out to 600 yards, though maximum effective range for point targets is typically considered to be 300-400 yards depending on rifle, optics, and shooter skill.
No, Winchester M193 uses lead-core bullets with copper jackets and brass cases. It will pass magnet tests at indoor ranges that prohibit steel-core or bi-metal ammunition.
M193 uses a 55-grain lead-core bullet, while M855 uses a 62-grain bullet with a steel penetrator. M193 typically shoots flatter and faster, while M855 offers better penetration of barriers.
Yes, Winchester brass is highly regarded by reloaders for its consistency and durability. The cases can typically be reloaded 5-10 times with proper care and inspection.
The 20-round packaging matches military specifications and fits standard stripper clips, making it convenient for loading magazines. The 1,000-round case quantity is ideal for bulk storage.
Yes, M193 is popular in Service Rifle competition and 3-gun matches. Its consistent velocity and accuracy make it an excellent choice for competitive events where FMJ ammunition is required.
Ammunition is final sale - no returns accepted due to safety and regulatory requirements.
We can not sell or ship any ammunition internationally outside of the United States or to domestically prohibited areas including: Alaska, California, Hawaii, New York, Washington D.C., or any U.S. Territory (Puerto Rico, Guam, USVI).
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