New Army "Caliber Configuration Study"

[nincomp]

P.S. I'm going to compare it to a 7.62x54R round from a PKM 25.4" barrel, with a 148gr bullet at 2,717 fps with a 0.350 BC. I've guesstimated the BC, since internet sources vary so widely. Sierra bullets lists a BC of 0.397 for its .308 150gr FMJBT. If I'm being unfair to the Russian, speak now.

I tend to believe the fellow on the the MG&A forum. He has access to a range with doppler radar measuring equipment, and had been a missile designer. Ballistics is his job.

I eventually got the russian photo of the 7.62x54 LPS and the Sierra 150 FMJBT pretty much to scale (what a pain). As you would expect, the steel cored bullet is longer. You can see that the ogive on the LPS is longer and it has a longer boattail. This makes the form factor pretty much the same as the Sierra. This is what I meant in my earlier post.

I have heard that GS Custom's BC's tend to be optimistic. I find it odd that I never saw those bullets being used by long range competitors. Based upon the published BC's they would have been idiots not to.

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