Importance

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Abstract

High velocity projectiles are able to continue in flight for considerable distances beyond the normal target range. The present invention is a projectile for use in practice firing which becomes unstable after the normal target range has been exceeded and comprises a training round (1) having a body portion (3) engageable with a sabot (4) for projection from a rifled gun barrel, and a tapered nose portion (2) protrusive beyond the sabot, which is provided with a nose tip portion (6) having spin fins (9) extending in planes radial to the longitudinal axis. The fins increase the rate of spin decay and cause instability of the round and the fin geometry is chosen such that the instability occurs when the target range has been exceeded. The finned nose tip portion is separable from the round so as to permit selective attachment of a nose tip portion having fins specifically dimensioned for terminating the trajectory at a chosen safety range.

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First Claim