okie
Gold $$ Contributor
		what is Fa? typo?Fa
Well, I dont use many Bartlien barrels at all. But a 4 groove Brux will tune close to a 4 groove Krieger. My opinion on the matter is, a 5r barrel changes the pressure curve. The bullet requires less force to engrave into the rifling. I believe thats why the tune can end up being quite different.
 
	








 
 
		 ! 5r or 6 groove ? 3 groove button pulled ?
 ! 5r or 6 groove ? 3 groove button pulled ?  
 
		
