Reduced drag projectiles |
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| 申请号 | US15331631 | 申请日 | 2016-10-21 | 公开(公告)号 | US10001355B2 | 公开(公告)日 | 2018-06-19 |
| 申请人 | Vista Outdoor Operations LLC; | 发明人 | Bryan P. Peterson; | ||||
| 摘要 | Embodiments of the invention include an elongate rifle bullet with a plurality of circumferential grooves having overmolded polymer therein defining embedded polymer rings. Embodiments of the invention include cartridges with propellant and such bullets. In one or more embodiments, the bullet has a body portion and a converging nose portion. The polymer rings have an outer surface that is flush with, that is, conforming to the outer surface of the body. The polymer may have be selected to have a favorable coefficient of friction with respect to the barrel. A feature and advantage of embodiments is that the metal to metal contact between the bullet and the barrel is reduced while not diminishing the ballistic coefficient of the bullet. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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