FMJ yaw and upset performance

[LR1955]

The two easy ways to encourage upset upon impact with soft tissue is to either cast an air pocket at the front of the bullet when you swage it. The tip doesn't have to be open, just have air immediately behind it. The second is to choose a body style with a short ogive and a pronounced boat tail, think M80 ball. Hoot

Hoot:

Got it backwards. M-80 has a very long ogive for its overall length and a short boat tail. However, that combination does make it pretty unstable when it strikes something but it still must penetrate close to a foot of gel before it starts to tumble. The old 5.56 M-193 had the same basic shape. The problem with these shapes is that they are not real good in exterior performance due to their design either.

LR1955