Bullet with improved aerodynamics
A bullet with a blunt meplat with reduced drag coefficient relative to a non-blunt meplat with improved speed consistency during flight shot to shot.
1. A bullet for use to form a cartridge usable in a firearm, the bullet comprising:
a bullet having a nose portion, a body portion and a tail portion with the body portion having diameter of at least about 0.2 inches, the nose portion including a tip insert secured directly to a cavity in the body portion of the bullet forming the leading surface of the bullet, the tip insert constructed from a metal material that is different than the metal material constructing the bullet, the tip insert including a meplat and the nose portion increasing in diameter from the meplat toward the body portion, the meplat being a blunt surface, the blunt surface being substantially flat having a deviation from flat defined as less than or equal to 0.02 times the body portion diameter D 1 and extending radially outwardly to and intersecting with an outside diameter surface of the nose portion, said meplat having a first diameter D 2 and the body portion diameter D 1 with the ratio of the first diameter to the second diameter being in the range of between about 0.07:1 and about 0.18:1.
2. The bullet of claim 1 wherein the ratio of the first diameter to the second diameter being in the range of between about 0.08:1 and about 0.16:1.
3. The bullet of claim 2 wherein the second diameter is in the range of between about 0.2 inches and about 0.51 inches.
4. The bullet of claim 3 wherein the metal constructing the tip insert is aluminum or aluminum alloy.
5. The bullet of claim 3 wherein the bullet is seated in a case; the case containing propellant and having a primer pocket with a seated primer.
6. The bullet of claim 3 wherein the body portion and tail portion of the bullet having a jacket formed from a first metal and a core constructed from a second metal.
7. The bullet of claim 6 wherein the tip insert includes a shoulder portion and a stem portion, the shoulder resting against the jacket metal and the stem secured within the core metal.
8. The bullet of claim 3 wherein the body portion and tail portion of the bullet being constructed from a monolithic metal.
9. The bullet of claim 3 wherein the tail portion of the bullet being a boat tail.