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Best price on 223 bullets?


igolfat8

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  • 2 weeks later...

Its not the point that makes the bullets bore accurate, it is the more uniform base of the bullet H 55 SP vs the H 55 FMJ. Pointed, tipped or HP bullets are all drawn in the reverse manner of a FMJ. As a result you get a consistent base on the bullet. The uniform base of the bullet provides an even surface for the gas to bear against as the bullet exists the muzzle and creates less disturbance.

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Its not the point that makes the bullets bore accurate, it is the more uniform base of the bullet H 55 SP vs the H 55 FMJ. Pointed, tipped or HP bullets are all drawn in the reverse manner of a FMJ. As a result you get a consistent base on the bullet. The uniform base of the bullet provides an even surface for the gas to bear against as the bullet exists the muzzle and creates less disturbance.

Yep - same reason I think most find pistol JHPs to be more accurate - the flat base.

It's an interesting question on outlast N yards, does the point affect the accuracy at range negatively vs the inherently better 'launch' with a flat base...

Anyone?

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The pointy end of the bullet has some effects on the BC of the bullet. All things equal a more pointy bullet will have a higher BC. The shape of the base of the bullet has a great deal to do with BC as the boat tail on the bullet increases BC. So yes, there is a trade off between a flat base and BT bullet, the flat base bullet will generally shoot better and the BT bullet retains energy and velocity longer. In BR this comes into play more then almost any other discipline as you are looking for .010 improvements in group size or better.

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I am saying that if you take two bullets of the same weight and different BCs and shoot them both at the same velocity, the one with the lower BC will retain less velocity and therefore less energy. You would have to run a BC program to find out. At 100 there is not going to be much of a difference. Years ago there was some experimentation with high BC flat based bullets. the idea was they would shoot as well as a blat base with the BC of a boat tail bullet. they did not shoot well.

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