4.6 mm small arms ammunition
First Claim
1. A projectile for a gun having a rifled barrel, said projectile comprising a round of ammunition;
- the rifling of the barrel comprising rifling grooves which are separated by lands extending helically along the length of the barrel;
the projectile having a body comprising;
a substantially cylindrical body, said body having a plurality of annular grooves formed therein;
a coating of copper or copper alloy substantially surrounding said body;
wherein the body of the projectile is formed from a metal having a Vickers Hardness of not less than 550, and the coating is of a thickness not less than the depth of the said rifling grooves, wherein a portion of the coating is deformed into a portion of said annular grooves.
2 Assignments
0 Petitions
Accused Products
Abstract
A round of ammunition for firing from a gun having a rifled barrel, especially a small arms weapon. The projectile (1) forming a part of the round is of steel or other material having a Vickers Hardness value not less than 550, and has a coating (13) of copper or copper alloy. The projectile has a forward body portion (9) which has a diameter similar to that of the lands of the rifling, and a rearward body portion (3) having a diameter which is similar to the diameter defined by the roots of the rifling grooves. The coating (13) is of a thickness not less than the depth of the said rifling grooves, so that the rifling engraves the coating but does not significantly engrave the underlying steel or other hard material. The advantages associated with a hard projectile material are thus obtained without substantially increasing barrel wear.
29 Citations
24 Claims
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1. A projectile for a gun having a rifled barrel, said projectile comprising a round of ammunition;
- the rifling of the barrel comprising rifling grooves which are separated by lands extending helically along the length of the barrel;
the projectile having a body comprising;a substantially cylindrical body, said body having a plurality of annular grooves formed therein; a coating of copper or copper alloy substantially surrounding said body;
wherein the body of the projectile is formed from a metal having a Vickers Hardness of not less than 550, and the coating is of a thickness not less than the depth of the said rifling grooves, wherein a portion of the coating is deformed into a portion of said annular grooves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- the rifling of the barrel comprising rifling grooves which are separated by lands extending helically along the length of the barrel;
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15. A projectile for use in combination with a rifled barrel of a gun, the projectile having a body comprising:
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a substantially cylindrical body portion, a plurality of annular grooves formed in and encircling said body portion; a coating of one of copper and copper alloy substantially surrounding said body, wherein the body of the projectile is formed from a metal having a Vickers Hardness of not less than 550, and the coating is of a thickness between 0.07 mm and 0.3 mm, and wherein a portion of the coating is deformed into a portion of said annular grooves. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A projectile for a gun having a rifled barrel, the rifling of the barrel comprising rifling grooves which are separated by lands extending helically along the length of the barrel, the projectile comprising:
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a substantially cylindrical body portion, said body portion formed from a metal having a Vickers Hardness of not less than 550, an outer diameter of said body portion is less than an internal diameter of the barrel, said body portion including a plurality of annular grooves; and a deformable coating comprised of one of copper and a copper alloy, said coating substantially surrounding said body portion;
wherein said deformable coating and said annular grooves comprise a means for deforming a portion of said coating into a portion of said annular grooves during firing of the projectile. - View Dependent Claims (24)
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Specification