Hollow bullet with internal structure

1. A bullet for use with a weapon having a barrel, the bullet comprising:

a hollow, cylindrical body portion;

a conical tip monolithically formed with the body portion, the body portion and the conical tip defining an internal cavity;

a plurality of recesses provided on at least one of the body portion and the conical tip, the plurality of recesses extending at least partially through a sidewall of the bullet; and

at least one truss extending radially across a portion of the internal cavity from an interior portion of the sidewall,

wherein the at least one truss includes a plurality of spokes extending radially outward from a central longitudinal axis of the internal cavity to an interior portion of the sidewall, the plurality of spokes separated by empty hollow spaces extending through a full thickness of the at least one truss,

wherein the recesses are disposed circumferentially in the radial direction of the bullet and are offset longitudinally along a longitudinal axis of the bullet,

wherein the at least one truss has an upper surface facing the conical tip and a lower surface opposite the upper surface, and

wherein the sidewall of the bullet is thickened in a location of the at least one truss.

2. The bullet of claim 1 , wherein the plurality of recesses extends fully through the sidewall of the bullet.

3. The bullet of claim 1 , wherein the plurality of recesses are disposed circumferentially in a radial direction of the body portion and are offset longitudinally along a central axis of the bullet.

4. The bullet of claim 1 , further comprising at least one ridge extending radially inward within the internal cavity toward a central axis of the bullet.

5. The bullet of claim 4 , wherein the at least one ridge is located in a transition portion between the body portion and conical tip.

6. The bullet of claim 1 , wherein a bottom end of the body portion opposite the conical tip is enclosed.

7. The bullet of claim 1 , wherein the conical tip terminates at a pointed tip.

8. A bullet for use with a weapon having a barrel, the bullet comprising:

a hollow, cylindrical body portion;

a conical tip monolithically formed with the body portion, the body portion and the conical tip defining an internal cavity; and

at least one truss extending radially across a portion of the internal cavity from an interior portion of a sidewall of the bullet,

wherein the at least one truss includes a plurality of spokes extending radially outward from a central longitudinal axis of the internal cavity to an interior portion of the sidewall, the plurality of spokes separated by empty hollow spaces extending through a full thickness of the at least one truss,

wherein the cylindrical body portion includes a recessed portion extending radially inward into an outer portion of the sidewall of the cylindrical body portion to reduce an area of contact between the bullet and a gun barrel,

wherein the at least one truss has an upper surface facing the conical tip and a lower surface opposite the upper surface, and

wherein the sidewall of the bullet is thickened in a location of the at least one truss.

9. The bullet of claim 8 , wherein the at least one truss fills at least a portion of the internal cavity to reinforce the internal cavity of the bullet.

10. The bullet of claim 9 , wherein the at least one truss is formed from a polymeric material.

11. The bullet of claim 8 , wherein a part of the cylindrical body portion that extends past the recessed portion forms a driving band.

12. The bullet of claim 11 , wherein a leading edge of the driving band proximate to the conical tip transitions into a radius of the conical tip.

13. The bullet of claim 8 , wherein the conical tip terminates at a pointed tip.

14. An ammunition round for use with a weapon having a barrel, the ammunition round comprising:

a cartridge having a generally cylindrical form including a closed bottom portion, an open top portion, and a cartridge sidewall extending circumferentially therebetween;

a primer provided at the terminal end of the closed bottom portion for interacting with a firing pin of a weapon;

a powder charge filling at least a portion of an interior of the cartridge between the open top portion and the closed bottom portion; and

a bullet provided at the open top portion of the cartridge, the bullet comprising:

a hollow, cylindrical body portion;

a conical tip monolithically formed with the body portion, the body portion and the conical tip defining an internal cavity; and

at least one truss extending radially across a portion of the internal cavity from an interior portion of a sidewall of the bullet,

wherein the at least one truss includes a plurality of spokes extending radially outward from a central longitudinal axis of the internal cavity to an interior portion of the sidewall, the plurality of spokes separated by empty hollow spaces extending through a full thickness of the at least one truss,

wherein the cylindrical body portion includes a recessed portion extending radially inward into an outer portion of the sidewall of the cylindrical body portion to reduce an area of contact between the bullet and a barrel of a weapon,

wherein the at least one truss has an upper surface facing the conical tip and a lower surface opposite the upper surface, and

wherein the sidewall of the bullet is thickened in a location of the at least one truss.

15. The ammunition round of claim 14 , wherein the at least one truss fills at least a portion of the internal cavity to reinforce the internal cavity of the bullet.

16. The ammunition round of claim 15 , wherein the at least one truss is formed from a polymeric material.

17. The ammunition round of claim 14 , wherein a part of the cylindrical body portion that extends past the recessed portion forms a driving band.

18. The ammunition round of claim 14 , wherein a leading edge of the driving band proximate to the conical tip transitions into a radius of the conical tip.

19. The ammunition round of claim 14 , wherein the conical tip terminates at a pointed tip.