Home Rifle Ammo 5.56x45mm NATO
Winchester White Box 5.56mm 55gr M193 Ammo

Winchester White Box 5.56mm 55gr M193 Ammo

Tracking 6 Dealers
Best Price
$0.46/rd
For 1000 rounds shipped to OH
Quantity
Best Total Price
$459.24

Price History

Average price across all tracked dealers
$0.56/rd
↑ $0.00 (0.9%) in the last 30D
Loading...

All Winchester White Box 5.56mm 55gr M193 Ammo Prices

DEALER QTY PRICE/RD
BulkAmmo.com 1000 $0.46
Lucky Gunner 1000 $0.47
Sentry Ammo 1000 $0.54
Black Basin Outdoors 1000 $0.55
Fast Ammo 500 $0.56
GrabAGun 500 $0.57
Sentry Ammo 500 $0.58
Black Basin Outdoors 500 $0.60
Fast Ammo 1000 $0.67
Fast Ammo 20 $1.00
Sentry Ammo 20 $1.19
Black Basin Outdoors 20 $1.24
Lucky Gunner 20 $1.61

Similar Products Compared

PRODUCT PRICE/RD
$0.46
1000 Rounds
$0.44
1080 Rounds
$0.42
1200 Rounds
$0.45
1000 Rounds

All Winchester White Box 5.56mm 55gr M193 Ammo Specs

Manufacturer
Winchester
Caliber
5.56x45mm NATO
Casing
Brass
Bullet Weight
55 grains
Projectile Type
FMJ
Velocity
3180 fps
Muzzle Energy
1235 ft-lbs
Ballistic Coefficient
0.246

Winchester White Box 5.56mm 55gr M193 Ammo Bullet Drop and Load Data

Loading...
Muzzle Velocity
3180.0 fps
Projectile Weight
55.0 gr
Ballistic Coef.
0.246 G1
Zero Range
100.0 yards

Product Overview

Raw performance still matters - that's why Winchester's 55gr M193 remains a benchmark for 5.56mm ammunition. Each round exits the muzzle at an impressive 3180 fps, creating the kind of flat trajectory that makes holdovers nearly obsolete inside 200 yards. That velocity translates into 1235 ft-lbs of energy, enough to topple coyotes and drop prairie dogs like they've been struck by lightning. The standard 55-grain bullet weight means optimal stability in everything from pencil-profile barrels to heavy contour match tubes.

Field testing reveals why this load has earned its reputation. Those high initial velocities mean better terminal performance on varmints, while the FMJ construction cuts clean holes in paper that make scoring a breeze. During rapid-fire drills, you'll notice how the consistent pressure curve keeps your rifle cycling smoothly even when the barrel starts heating up. The projectile's standard weight profile also means minimal adjustment when transitioning between different shooting positions - a huge plus during competition.

Where this ammunition really stands out is in its ability to deliver consistent performance across high round counts. Those weekend classes that burn through 500 rounds? No problem. Monthly 3-gun matches? You're set. The economical pricing means you can actually afford to train regularly instead of hoarding your "good stuff" for special occasions. And unlike bargain-bin alternatives that leave your rifle dripping with copper fouling, these rounds keep your bore clean enough to pass inspection even after marathon range sessions. Think of it as investing in trigger time instead of just collecting brass.

Pros and Cons

Advantages

  • Balanced velocity delivers reliable accuracy while minimizing wear, ideal for regular range practice
  • Moderate pressure curve helps preserve extractor life during extended practice drills
  • Produces less felt recoil than hotter loads, supporting faster target transitions during drills
  • Works smoothly across different gas system lengths without requiring adjustments

Disadvantages

  • Mid-range velocity requires additional compensation for wind drift compared to premium options
  • Basic projectile design offers fewer advantages than specialized target or hunting loads
  • Performance metrics fall in the middle of the pack, limiting maximum effective range