Bullet with controlled fragmentation
First Claim
1. A jacketed hollow-point bullet comprising:
- a core having a forward end and a rear end and intermediate side portions extending therebetween;
the forward end of the core defining a cavity;
a jacket encompassing the rear end and at least selected portions of the sides of the core;
the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness;
the first portion having a forward edge defining an angled transition surface;
the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and
wherein the second portion of the jacket defines a bulge associated with the indentation.
1 Assignment
0 Petitions
Accused Products
Abstract
A bullet with controlled fragmentation has a core in the form of a generally cylindrical body having a forward end and a rear end and intermediate side portions extending there between, the forward end of the core defining a cavity, a jacket encompassing the rear end and at least selected portions of the sides of the core, the jacket having a sidewall having a first drive band portion having a first wall thickness, and a second portion immediately forward of the drive band portion having a second thickness less than the first thickness, the exterior of the jacket defining a cannelure groove encircling the bullet, and the cannelure groove being positioned forward of the first drive band portion. The drive band may have forward edge defining a step. The bullet of the present invention may also be received in the case mouth of a rimless case and be partially protruding therefrom.
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Citations
17 Claims
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1. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and wherein the second portion of the jacket defines a bulge associated with the indentation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; wherein the angled transition surface joins the inner surface of the second portion of the jacket at an acute angle; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and the indentation having a rear limit forward of the angled transition surface by less than the width of the indentation.
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11. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having forward edge defining an angled transition surface; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and wherein the angled transition surface joins an inner surface of the second portion of the jacket at an acute angle. - View Dependent Claims (12)
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13. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and wherein the indentation has a depth of greater than 40 percent of the width of the indentation.
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14. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and wherein the indentation has a depth of at least 70 percent of wall thickness in which the indentation is formed.
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15. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; wherein the core is primarily lead, and has an antimony content of at least 3 percent; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; and the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface.
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16. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; the interior of the jacket defining a bulge associated with the indentation; and the bulge being positioned adjacent to the first portion of the jacket sidewall.
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17. A jacketed hollow-point bullet comprising:
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a core having a forward end and a rear end and intermediate side portions extending therebetween; the forward end of the core defining a cavity; a jacket encompassing the rear end and at least selected portions of the sides of the core; the jacket having a sidewall having a first portion having a first wall thickness, and a second portion immediately forward of the first portion having a second wall thickness less than the first wall thickness; the first portion having a forward edge defining an angled transition surface; the exterior of the second portion of the jacket defining an indentation encircling the bullet and proximate to the angled transition surface; and wherein the angled transition surface joins the inner surface of the second portion of the jacket at an acute angle.
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Specification