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			#1  
			
			
			
			
			
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|  AR question 
			
			This just my own curiosity talking.  How effective might 300 blackout be in a 20 inch barrel? | 
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			#2  
			
			
			
			
			
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			No point. The .300 Blackout was designed for short barrel suppressed rifles
		 
				__________________  "There's a fine line between not listening and not caring...I like to think I walk that line everyday of my life." Blessed be the LORD, my rock, Who trains my hands for war, And my fingers for battle Psalm 144:1 “It is always wrong to use force, unless it is more wrong not to.” | 
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			#3  
			
			
			
			
			
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			Never mind then.
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