fieldwanderer Posted January 14, 2011 Report Share Posted January 14, 2011 Just after info for now so please don't go off on one about proofing issues etc just yet... My aya side by side's looking a little poorly down the bores nowerdays and I may have found a cure on YouTube of all places! An American guy uses a "backbore reamer" to remove enough metal to "cure" the pitting. It works really well and I don't feel I've got much to loose (except maybe the cost of the tools and a reproof for peace of mind). Anyone ever done this? What size reamer would I need (I take it you get one marginally bigger than the bore was as standard?) and any other advice you can offer? The gun's in great nick apart from this pitting (which I don't think is too bad) and I'd like to sort this and keep it rather than get rid as it was my first shotgun. Quote Link to comment Share on other sites More sharing options...
Scully Posted January 14, 2011 Report Share Posted January 14, 2011 Sounds interesting....there must be a gunsmith somewhere in the uk who is already set-uo to do this.See if the Gun Trade Association can help. Quote Link to comment Share on other sites More sharing options...
welshwarrior Posted January 14, 2011 Report Share Posted January 14, 2011 Midway Uk do a reamer/hone for this the has abrasive balls on a rod can't remember the name tho, demo on youtube looked easy enough tho on a drill. Quote Link to comment Share on other sites More sharing options...
sitsinhedges Posted January 14, 2011 Report Share Posted January 14, 2011 There are several automotive bore hones on that auction site for not much money. The smaller ones will fit a 12gauge Quote Link to comment Share on other sites More sharing options...
fieldwanderer Posted January 14, 2011 Author Report Share Posted January 14, 2011 Thanks guys, I'll have a look. I think it's a bit too much for an automotive hone though it may be worth a go first. The one I'm on about is like a reamer a machine shop would use, I've used them on kingpins when I was a mechanic. It's a pretty drastic measure but really did look to do a good job. Pricey though, about £55 for the reamer and I think you need a handle and a bush to go with it though I'd probably make my own. Quote Link to comment Share on other sites More sharing options...
Andy H Posted January 14, 2011 Report Share Posted January 14, 2011 Be careful using a reamer over that length that you do not score the bore, I have used brake cylinder hone's on quite a few shotguns and you will be amazed what pit's can be removed with only .001" of metal being honed away , the limit's are 8 thou for guns proofed in imperial and 10 thou in metric , that is from the bore measured at proof. Quote Link to comment Share on other sites More sharing options...
fieldwanderer Posted January 15, 2011 Author Report Share Posted January 15, 2011 Got a cylinder hone yesterday and ended up near enough making a new one so it would fit down the bore, it seems to be doing the trick though very, very slowly - did you find the same? Did you use any kind of lubricant? I seem to remember when I was taught to use them on an engine we used oil though that may only have been to help with removing debris before re-assembly... Quote Link to comment Share on other sites More sharing options...
welshwarrior Posted January 15, 2011 Report Share Posted January 15, 2011 http://www.midwayuk.com/apps/eproductpage.exe/showproduct?SaleItemID=323326 is the one I've seen wont need any DIY work just put it in the drill simples Quote Link to comment Share on other sites More sharing options...
fruitloop Posted January 15, 2011 Report Share Posted January 15, 2011 (edited) is this what you are looking for http://www.brownells.com/.aspx/pid=7930/Product/SHOTGUN_BARREL_HONE i think this is where midway get there things from Edited January 15, 2011 by fruitloop Quote Link to comment Share on other sites More sharing options...
Andy H Posted January 15, 2011 Report Share Posted January 15, 2011 Got a cylinder hone yesterday and ended up near enough making a new one so it would fit down the bore, it seems to be doing the trick though very, very slowly - did you find the same? Did you use any kind of lubricant? I seem to remember when I was taught to use them on an engine we used oil though that may only have been to help with removing debris before re-assembly... Use paraffin or kerosene is flushes all the debris out and stops the stones from wearing as much as using them dry. Quote Link to comment Share on other sites More sharing options...
955i Posted January 15, 2011 Report Share Posted January 15, 2011 Judging by the title, I clicked on this expecting porn!! How disappointing Quote Link to comment Share on other sites More sharing options...
fieldwanderer Posted January 16, 2011 Author Report Share Posted January 16, 2011 After altering mine (which was 3 "legged") I ended up with something very similar to the one in fruitloop's link. I've been using diesel as a lube so great minds think alike, I'll keep at it and see how it goes. Quote Link to comment Share on other sites More sharing options...
Paul223 Posted January 16, 2011 Report Share Posted January 16, 2011 (edited) The flexi hones (lots of small balls type) are not that much use for pitting, long adjustable fixed stone hone (or 2 or 3 legged hones) are better, but a reamer is the best bet, they do come up on ebay usa from time to time wd40 works well for lube, as will any light oil or diesel what you going to do with the choke Edited January 16, 2011 by Paul223 Quote Link to comment Share on other sites More sharing options...
fruitloop Posted January 16, 2011 Report Share Posted January 16, 2011 thay have a back bore ream http://www.brownells.com/.aspx/cid=11613/k=/t=P/Products/Shotgun-Reamers Quote Link to comment Share on other sites More sharing options...
tomhw100 Posted January 16, 2011 Report Share Posted January 16, 2011 That title Back Bore Reamer sounds like the title of George Michael's new book Quote Link to comment Share on other sites More sharing options...
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