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			If it's a good deal than go for it.  22LR rimfire ammo weather copper plated or not do not foul a barrel worth a darn. 
 
Heck, most 22LR shooters clean their barrels between never and every couple thousand rounds if that.
		 
		
		
		
		
		
		
			
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				220 Swift still King
			 
		
		
		
		
		
	
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