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Rock River Varmint A4 20" or 24" barrel

3K views 2 replies 3 participants last post by  Kaz 
#1 ·
I have a hankering to buy a Rock River Varmint A4. Trying to decide on the 20” or the 24” barrel. Which length would provide the best accuracy?
 
#3 ·
A buddy of mine said that the optimal length is 21 inches. He believes that all the powder is burned before it leaves a 24 inch barrel and they server no purpose as a result of that. Just a bit of information to throw out.
 
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