Projectiles for ammunition and methods of making and using the same

1. A projectile for ammunition, said projectile comprising: (I) an outer profile geometry on an ogive-shaped impact end portion thereof, said outer profile geometry comprising two or more channels extending along a portion of an outer periphery of said ogive-shaped impact end portion that is positioned within a plane (P 1 ) that contains a maximum diameter (D max ) of said ogive-shaped impact end portion, and wherein each of said two or more channels (i) extends a length (L a ) that is parallel relative to a dissecting axis extending longitudinally through said impact end portion, and (ii) comprises a channel surface, at least a portion of said channel surface extending along the length (L a ) and being parallel relative to said dissecting axis; (II) a shank portion opposite said ogive-shaped impact end portion, said shank portion having (i) a shank portion diameter (D shank ) that is less than the maximum diameter (D max ), and (ii) a shank portion outer surface, and at least a portion of said shank portion outer surface extends parallel relative to said dissecting axis; and (III) a step portion positioned between said ogive-shaped impact end portion and said shank portion, said step portion having (i) a step portion diameter (D step ) that is less than said maximum diameter (D max ) and greater than said shank portion diameter (D shank ), and (ii) a step portion outer surface, and at least a portion of said step portion outer surface extending parallel relative to said dissecting axis,

wherein each of said two or more channels extend into said step portion.

2. The projectile of claim 1 , wherein said two or more channels comprise from three to eight channels.

3. The projectile of claim 1 , wherein said two or more channels comprise three or four channels substantially equally spaced from one another.

4. The projectile of claim 1 , wherein said channel surface has a geometrically shaped cross-sectional configuration within said channel, said geometrically shaped cross-sectional configuration extending from one lateral side edge of said channel to an opposite lateral side edge of said channel.

5. The projectile of claim 4 , wherein geometrically shaped cross-sectional configuration comprises a circular cross-sectional configuration.

6. The projectile of claim 1 , further comprising four ribs substantially equally spaced from one another along said shank portion outer surface and extending outwardly along said shank portion outer surface.

7. The projectile of claim 1 , wherein said outer profile geometry further comprises a notch for each channel of said two or more channels, each said notch extending in at least one of (i) an axial, (ii) parallel or (iii) slightly inclined orientation relative to said dissecting axis, wherein each said notch (a) comprises notch surface portions so as to increase (i) an overall outer surface area of said ogive end portion, and (ii) a given length of an outer surface periphery (S p ) extending along a line within a plane normal to said dissecting axis, and (b) is at least partially surrounded by (i) an outer surface of said ogive-shaped impact end portion, and (ii) an edge of one of said channels of said two or more channels.

8. The projectile of claim 7 , wherein each said notch has said slightly inclined orientation relative to said dissecting axis, with each said notch being oriented at an angle (A) of greater than zero up to about 45° relative to said dissecting axis.

9. The projectile of claim 7 , wherein (I) a notch dissecting line (L nd ) of each said notch curves as said notch dissecting line (L nd ) moves from an uppermost periphery portion of said notch to a lowermost periphery portion of said notch, (II) a notch depth dissecting line (L dd ) curves as said notch depth dissecting line (L dd ) moves from said uppermost periphery portion of said notch to said lowermost periphery portion of said notch, and (III) said notch depth dissecting line (L dd ) has a J-shape or reverse J-shape or a C-shape or a reversed C-shape as said notch depth dissecting line (L dd ) moves from said uppermost periphery portion of said notch to said lowermost periphery portion of said notch.

10. The projectile of claim 7 , wherein each combination of said notch and said corresponding channel extends from a projectile tip end to (i) a location along said ogive-shaped impact end portion which is within the plane (P 1 ) that contains the maximum diameter (D max ) of said ogive-shaped impact end portion, or (ii) a location within said step portion.

11. A composite or polymer or metal casing comprising: the projectile of claim 1 mounted therein.

12. A method of using the projectile of claim 1 , said method comprising:

positioning a composite or polymer or metal casing comprising the projectile in a chamber of a weapon comprising (i) a projectile-firing weapon or (ii) a projectile-firing compressed air weapon; and

firing the weapon.

13. The projectile of claim 1 , wherein each of said two or more channels extend through said step portion.

14. The projectile of claim 1 , further comprising two or more ribs extending outwardly from said shank portion outer surface and being substantially equally spaced from one another along said shank portion outer surface, each of said two or more ribs extending (a) longitudinally along said shank portion outer surface and (b) parallel with said dissecting axis.

15. A projectile for ammunition, said projectile comprising: (i) an ogive-shaped impact end portion having a maximum diameter (D max ), (ii) a shank portion opposite said ogive-shaped impact end portion, said shank portion having a shank portion diameter (D shank ) that is less than said maximum diameter (D max ), (iii) two or more ribs extending outward from a shank portion outer surface and being substantially equally spaced from one another along said shank portion outer surface, each of said two or more ribs extending (a) longitudinally along said shank portion outer surface and (b) parallel with a dissecting axis extending longitudinally through said ogive-shaped impact end portion, (iv) a step portion positioned between said ogive-shaped impact end portion and said shank portion, said step portion having (a) a step portion diameter (D step ) that is less than said maximum diameter (D max ) and greater than said shank portion diameter (D shank ), and (b) a step portion outer surface, and at least a portion of said step portion outer surface extending parallel relative to said dissecting axis, and (v) two or more channels extending along said ogive-shaped impact end portion and within a plane (P 1 ) that contains said maximum diameter (D max ), and wherein each of said two or more channels (a) extends a length (L c ) that is parallel relative to said dissecting axis, and (b) comprises a channel surface, at least a portion of said channel surface extending along the length (L c ) and being parallel relative to said dissecting axis; wherein each of said two or more channels extend into said step portion.

16. The projectile of claim 15 , further comprising a notch for each channel of said two or more channels, each said notch extending in a slightly inclined orientation relative to said dissecting axis, wherein each said notch (a) comprises notch surface portions so as to increase (i) an overall outer surface area of said ogive end portion, and (ii) a given length of an outer surface periphery (S p ) extending along a line within a plane normal to said dissecting axis, and (b) is at least partially surrounded by (i) an outer surface of said ogive-shaped impact end, and (ii) an edge of one of said channels of said two or more channels.

17. A projectile for ammunition, said projectile comprising: (I) an outer profile geometry on an ogive-shaped impact end portion thereof, said outer profile geometry comprising (a) two or more channels extending along a portion of an outer periphery of said ogive-shaped impact end portion that is positioned within a plane (P 1 ) that contains a maximum diameter (D max ) of said ogive-shaped impact end portion, and wherein each of said two or more channels (i) extends a length (L c ) that is parallel relative to a dissecting axis extending longitudinally through said impact end portion, and (ii) comprises a channel surface, at least a portion of said channel surface extending along the length (L c ) and being parallel relative to said dissecting axis; and (b) a notch for each channel of said two or more channels, each said notch oriented at an angle (A) of greater than zero up to about 45° relative to said dissecting axis, wherein each said notch (a) comprises notch surface portions so as to increase (i) an overall outer surface area of said ogive end portion, and (ii) a given length of an outer surface periphery (S p ) extending along a line within a plane normal to said dissecting axis, and (b) is at least partially surrounded by (i) an outer surface of said ogive-shaped impact end portion of said projectile, and (ii) an edge of one of said channels of said two or more channels (II) a shank portion opposite said ogive-shaped impact end portion, said shank portion having (i) a shank portion diameter (D shank ) that is less than the maximum diameter (D max ), and (ii) a shank portion outer surface, and at least a portion of said shank portion outer surface extends parallel relative to said dissecting axis; and (III) a step portion positioned between said ogive-shaped impact end portion and said shank portion, said step portion having (i) a step portion diameter (D step ) that is less than said maximum diameter (D max ) and greater than said shank portion diameter (D shank ), and (ii) a step portion outer surface, and at least a portion of said step portion outer surface extending parallel relative to said dissecting axis,

wherein each of said two or more channels extend into said step portion.