Posted: 10/28/2008 9:37:31 PM EDT
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For a 20" RRA standard (Heavy) barrel, would the unlined chromoly barrel offer any advantage over the 20" stainless barrel? Would the CM be any more consistant as the barrel heats up or offer any possible advantages? With money not a factor, any reason not to get the stainless?
BTW, what is the rate of fire and round count for match event strings in which the stainless barreled RRA NM rifle would typically complete? |
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I'll let someone else weigh in the CMP Match courses of fire.
Barrel to barrel, you have different materials and twist rates. The moly barrel is a 1:9, while the stainless has a 1:8. The faster twist of the stainless will stabilize heavier/longer bullets than the 1:9 would tend to, but also won't stabilize somewhat lighter bullets as the 1:9 might. Stainless has somewhat better heat characteristics than moly as well. And, of course, a moly barrel is phosphated to a dull blackish color, whereas the stainless is goign to be silver (matte silver if bead blasted, but still silver). Steve/RRA |