Ha ha ha ha ha ha!
Sorry, but it might be easier to put a few Twenties through a shredder - saves all that time and effort, waiting and disappointment. 10 seconds, no hassle, same result!
Why not send your rifle to somebody like Baz or Sam - people who know what they're doing? <img src="http://jsramsbottom.co.uk/bbs/e/icon_smile.gif" alt="Smile" width="15" height="15"><!--graemlin:-->
regards
BC