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Bullet selection for hunters -III
(Due to bad formats in the original Web Page we recommend to watch at the photos corresponding to this article directly from our section at the bottom of this page -Photos-, we did a great labour composing these articles from the author for easy reading. Thank You.)
Hollow point semi jacketed lead bullet
picture: Rick Jamison/DWJ
Bullets for the .338 Lapua from left to right:
Mira bullet is not current any more
Full metal jacket lead bullets and other solids, because a FMJ lead bullet behaves up to 800 m/s like solid, differ from lead tipped bullets by having the stronger (see table above) jacketmetal, compared to lead, in front at the jam pressure. It needs about ten times pressure to rupture tombak compared to lead. So when a FMJ or solid is shot at moderate rifle speeds, it will not brake up or fragment (except the German 7,51x51 Nato cartridge with iron jacket and thin crimp, see right). As not lens shaped bow is formed, no shoulder exits to stabilize the bullet in flesh. The bullet enters through a narrow permanent wound funnel, then tilts after about 15 cm. The exposed area increases from the cross section to the full side area, that may be 3 to 4 time larger, than the calibre's cross section. The larger effective pushing area opens up a larger temporary wound cavity, until the bullet stabilized with its heaviest part, usually the back, in front. So all FMJ or solids fly rather uncontrolled through the target. As shoulder stabilization lacks on FMJ´s, the inner flight direction may angle quite a bit from the shots exterior path. When shooting big dangerous game (Hippopotamus, rhinoceros, buffalo) with rather small targets (heart), that imprecision can cost Your life. A sturdy semi jacketed bullet will shoulder stabilized fly inside the target in the same direction as before outside.
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