In general there are two kinds of magnetic bullet. The first only includes steel because it\u2019s cheaper than copper. The second actually puts its steel to work to promote better penetration through sheet metal. This 5.56×45 ammo by Winchester features the latter kind of bullet.<\/span>
An M855 round\u2019s 62 grain bullet performs identically to an FMJ until it makes contact with something. If it hits steel plating within about 300 yards, the seven grain steel tip beneath its jacket facilitates clean perforation. If it hits soft tissue, that same tip promotes penetration up to a depth of 20\u201d. The penetrator bullet may even break into two pieces inside of soft tissue, thus increasing its chance of striking a vital organ. Effective stuff for self-defense \u2013 hence why the Army uses it \u2013 but just as useful for happy times with an AR-15 as well!<\/span>
This ammo\u2019s green-tipped bullets are loaded in new production brass cases. The cases are only gray around their necks and shoulders because they have been annealed, i.e. heat-treated to help them expand and reduce fouling within the action during ignition. Winchester\u2019s consistent primers and propellant charges deliver satisfying target grade accuracy \u2013 just take note that a 62 grain bullet performs most accurately in co<\/span>njunction with a 1:8 or 1:9 twist barrel.<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"
Ammo Overview<\/h2>\n
Ammo Quantity<\/strong> – 1,000 rounds per case<\/span> Ammo Manufacturer<\/strong> – Winchester<\/span> Projectiles<\/strong> – 62 grain full metal jacket (FMJ) M855<\/span> Ammo Casings<\/strong> – Boxer-primed brass<\/span> Muzzle Velocity<\/strong> – 3,060 fps<\/span> Muzzle Energy<\/strong> – 1,289 ft lbs<\/span><\/div>\n","protected":false},"featured_media":1373,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_cat":[201,239],"product_tag":[203,238,236,240,225,206,205,207,208],"yoast_head":"\n1000 Rounds of 5.56x45 Ammo by Winchester USA - 62gr FMJ M855 - American Gun Store<\/title>\n\n\n\n\n\n\n\n\n\n\t\n\t\n\t\n\n\n\t\n