Part II of "Requirements for replacements of currently issued 5.56 M-855 and 7.62 M-8
#10
As always very good stuff, guys.

The practical test I would like to see is an apples-to-apples comparison of optimized loadings (not necessarily peak velocity, but loadings pressure-approved in all temperature extremes) in identical barrel lengths using similar projectiles on identical target test mediums.

OPEN TIP MATCH BULLETS

5.56N = 77gr Sierra MatchKing (Mk262)

6.5G = 123gr SMK

7.62N = 175gr SMK (M118LR)

FULL-METAL JACKET

5.56N = 62gr M855A1 (Liberty Ammunition's copper body, steel tip T3 bullet design)

6.5G = 110gr T3

7.62N = 147gr T3

I realize it's kind of jumping the gun to just ad hoc test something without thinking through what it is we really want, but with this I'd like to establish a baseline to have some data on where we're at with state-of-the-art, but off-the-shelf technology.

John

P.S. It also occurs to me that Barnes has an extensive TTSX line of bullets that should include the three calibers mentioned above, for an apples-to-apples comparison of the relative performance of those projectiles.
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Part II of "Requirements for replacements of currently issued 5.56 M-855 and 7.62 M-8 - by BluntForceTrauma - 05-26-2011, 03:58 PM

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