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Old 01-27-2008, 10:48 PM
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ar15barrels ar15barrels is online now
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Join Date: Jan 2006
Location: Van Nuys
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175 SMK and 155 Scenar have higher BC's than the 168 SMK.

155 SMK: 0.450
168 SMK: 0.462
175 SMK: 0.496
155 Scenar: 0.508

You can drive the 155gr bullets considerably faster than the 168's and 175's too.
I'm shooting 155 SMK's at 2875fps and I still have some margin to warm up the load some more.
Once I run out of these SMK's, I'll move over to the 155 Scenars I bought a little while ago.
Randall Rausch

AR work:
Bolt actions:
Foreign Semi Autos:
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
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