Lets start over: how do you design a GPC?

[SHORT-N-SASSY]

The latter is no problemo. We have a JAG who has demonstrated he will approve virtually any bullet design the military wants to use. Examples:

- Sierra MatchKing hollow point bullet (7.62 M118LR, 5.56 Mk262)
- Barnes TSX expanding hunting bullet (5.56 "Optimized")
- ATK SOST expanding, fragmenting hollow point bullet (5.56 Mk318, 7.62 Mk319)

Thanks for the clarification. Upon a review of the Sierra MatchKing HPBT projectiles used in the 7.62 M118LR and 5.56 Mk262, it appears that the nearly closed tips of those approved designs are identical to the tips of the 6.5mm Sierra MatchKing 123-grain HPBT, the 6.5mm Nosler Custom Competition 123-grain HPBT and the 6.5mm Lapua Scenar 123-grain HPBT.