Winchester USA 5.56x45mm NATO 55 Grain FMJ is meticulously crafted for the target shooting community. Its full metal jacket and optimal grain weight allow for reduced barrel fouling and enhanced cycling reliability in semi-automatic firearms. Hunters and competitive shooters alike appreciate its flat-shooting trajectory, making it a staple for gaining proficiency in various shooting disciplines. This ammunition is ideal for training purposes, law enforcement drills, and civilian recreation due to its predictable ballistic performance and substantial cost savings when purchased in bulk. Additionally, this brass is manufactured on mil-spec production lines which require evidence of the annealing process be left on the brass near the neck of the casing. This is the darker residue that is visually noticeable around the case neck. Both commercial and mil-spec brass undergoes this same annealing process which makes the brass stronger and less brittle. The annealing process essentially runs the brass through a series of flames which heat the brass having the effect of re-strengthening it in its final shape. Commercial brass is then re-cleaned after it has been annealed to make it cosmetically more appealing for the commercial market. Military requirements on the other hand place a larger emphasis on the structural integrity of the casing so they require that evidence that the brass has been annealed remain on the brass.

This ammunition is new production, non-corrosive, in boxer-primed, reloadable brass cases.

This is for (1) one box of 20 rounds.

Technical Information: Caliber: 5.56x45 M193, Bullet Weight: 55 Grain, Bullet Style: Full Metal Jacket (NON MAGNETIC), Case Type: Brass.

Ballistics Information: Muzzle Velocity: 3180 ft/sec, Muzzle Energy: 1235 ft/lbs.