I've been watching this thread with some interest and have now decided to add my two cents worth.
First, I should state that the lands and grooves in the barrel of my Farmingdale R9 are as shiny as polished glass. If there were any tool marks in the barrel when I took delivery of the pistol in May 2004, I didn't see them, and I use a bore light whenever I clean the gun. If there were originally any tool marks that I overlooked, they must have been removed by the process of "shooting/cleaning/shooting/cleaning,
etc., etc. Second, I agree with Duane that this is a cosmetic issue. He has stated that the factory is aware of the matter and is looking into it. Even
internal cosmetic issues are important to Rohrbaugh.
Third, I suggest that there is a simple and inexpensive DIY solution out there for anyone who perceives any tool marks in the barrel of his R9 -- one that is used by some of the top-tier shooters in preparing their firearms for competitition. Here is a link to the product:
http://www.davidtubb.com/ff-kit-38-9mm-calAnd here is some additional reading on the subject from the product's web site:
[size=10]Superior Shooting Systems Inc. FinalFinish Bore Conditioning System represents a significant advancement in the enhancement of firearm performance. It's a better barrel in a box!
FinalFinish is an easy, do-it-yourself process that will give the barrel on your firearm a more uniform and polished bore. This will allow you to increase velocity, reduce fouling, make cleaning easier, and, most importantly, the successive application of the five different FinalFinish compounds will improve the quality of the barrel.
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When any barrel is made -- custom or production -- it first has to be drilled. As with any cutting tool, the drill leaves behind its signature: tool marks. Tool marks are blemishes that remain in the metal surface as the result of disruption to the metal. The rifling process then adds more tool marks and imperfections, regardless of the rifling system used (hammer-forged included). These marks normally run in the opposite direction the bullet travels, creating "speed bumps" the bullet must negotiate: a bumpy ride down the barrel which ends in a bumpy flight to the target. Plus, the corrugated and unpolished surface of most barrels creates friction. This friction snags and abrades the bullet jacket, and the rough surface collects firing residue as well as bullet jacket material (fouling).
FinalFinish eradicates most all of these tool marks and leaves a lapped surface in its place.
Since even the most precisely manufactured barrels cannot be made perfect, variations in bore diameter can and do occur. Variations in bore diameters can ultimately mean variations in land (rifling) measurements, and it's the lands that drive the bullet. Bore diameter variations can be significant. FinalFinish greatly improves the uniformity over the full length of the barrel. While it is possible for a skilled gunsmith to hand-lap your factory barrel, it won't be cheap and you must cut and re-crown the muzzle. You can get most of the beneficial effects yourself in one morning at the range using FinalFinish. * * * FinalFinish is designed to improve . . . factory barrels. It will produce dramatic improvements in these barrels. The improved polish and smoothness will allow you to increase velocity and reduce fouling. This means that more rounds can be fired without accuracy deterioration.
(Some of the most impressive results with FinalFinish have come in factory-barreled handguns. Our test firearms showed an average of 60-percent smaller groups! Lead bullet shooters especially will find much easier clean up too.) [Emphasis supplied.]
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Finally, here is a link to some information on the man behind the product:
http://www.davidtubb.com/about-david-tubbMeanwhile, for any of you out there who are reading this thread and considering the purchase of a Rohrbaugh R9, I sincerely suggest that you can do so in the sure and certain knowledge that you are purchasing the smallest, lightest, and most carefully machined and assembled full-house 9mm pocket pistol yet designed and marketed.
R out.