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Originally posted by Michael Robinson:

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Originally posted by Boss Hoss:

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Michelle Sutton, Co-Owner, Hart Rifle Barrels

I've also personally witnessed the damage that can be done with over-aggressive cleaning. I had one barrel that I cleaned using Rem-Clean on a patch over a brass brush. (Rem-Clean is an abrasive similar to JB.) I made 10 round-trips through the bore, running the brush just a bit past the muzzle on each cycle. Then I went out and shot the gun. The groups were terrible and the last two inches of the barrel was packed with copper. I inspected what had been a nice shiny, sharp crown and it looked like it had been bead-blasted. I then measured the bore diameter at the crown and found that the groove dimension had increased .0002" (two ten-thousandths). I ended up cutting a half-inch off the barrel and recrowning it, but the barrel still shot very poorly. It basically had been ruined for competitive purposes.

I may have been born yesterday, but not last night. That is utter nonsense.

I agree that that is someone just making a statement...

To answer the question about how does Iosso work----IT IS ALL THAT I USE. My mentor who is a HOF shooter and one of the best Smiths out there is the one who showed me how to use it and over the years it has a perfect track record.

My Smith is Speedy Gonzalez who btw called me this morning and he was driving over the pass to go to Raton to practice F Class of all things! He used Iosso to clean his barrel yesterday when he finished practicing. When he is finished he will be going back to Trinidad to teach later today where he runs the 3rd year program at Trinidad State.

You do not get a lot of these unless you know how to properly clean your tube LOL:

1-- in oder to harm your stainless steel competition barrel by using JB or a bronze brush--you would have to do nothing but scrub the barrel incessantly for a period of time best expressed in years.


2-- off the shelf factory chrome moly barrels have so many tool marks and such inexact land and groove diameter that it is hard to see how anything could be done to them to make them worse anyway---always assuming the throat has not been burnt out.


3-- barrel makers and gunsmiths have been known to say all kinds of things in order to soothe the [in]cognoscenti and thereby not need to field comment/complaints from the same. as a couple of examples--a well know--at least in the BR world--was taken to task for posting a "break in" procedure on his website and defended that choice by siting the wasted time save by avoiding the foregoing. A gunsmith near me who is well respected as a BR smith and shooter was allegedly quoted as decrying the use of brushes to clean the bores of BR rifle. Turns out he was misquoted and has since stopped making any cleaning recommendations at all to people he does not know well. Another one recommended nylon brushes only.------

As someone said--a look in the barrel with a borescope will reveal the truth--but truth is not always good for business.