Loose hammer gun
			 
			 
			
		
		
		
			
			Just got a hammer gun - low grade, well used and mechanically great except it does not lock up tightly.  
I'm assuming (though I know the danger of that!) that it's the barrel hook and pin that need some extra material. 
Reading through the forums I see that I could put in oversize roll pins, shims and do some laser welding. 
Has anyone tried having the hook hard chromed? I know from my R&D days that it isn't expensive, and is very controllable as far as thickness goes.  Seems to me that this would retain the hook shape pretty well. 
I thought I could measure the gap at the breech face and then have the hook chromed 0.001" over or so and then fit the barrel face appropriately. 
Is this just a stupid idea?
		 
		
		
		
		
		
		
		
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