handy bore-cleaning protection tubes can be properly labeled and stored for convenient use. AN ALTERNATE BORE CLEANING PROTECTION TUBE
As pictured herein, I shall describe
an alternate way of making a bore clean- ing protection tube. Cost is minimal and the tubes are cartridge specifi c. The only two parts needed are a cartridge to fi t the chamber and a length of rigid, thin- wall copper tubing. The unprimed case head is drilled out through the primer pocket on through the web and attached to the copper tubing. I soldered some in place, and others were attached with J-B Cold-Weld bonding material, or even winds of tape to make up the diameter difference. The newly drilled hole is chamfered to facilitate cleaning patch passage.
Either way, the unit serves the
same purpose of keeping the action clean as those made from golf shafts. It also serves as a workable cleaning rod guide.
As rifl emen, it behooves us to keep
our bores clean and shooting with preci- sion. We must, however, avoid damage to the bore or carelessly getting cleaning solutions into the trigger or working parts, as well as the stock surface. These easy-to-make action protection tubes are a good place to start. Discarded golf shafts are available at golf shops, fre- quently at no charge, or a very nominal charge. The trick is to … just do it. SOME SPECIAL INFORMATION ON BORE COPPER CONTROL On the subject of bore care I am of-
ten asked the question of how I routinely clean and care for my rifl e bores for best accuracy. First, I want to point out there may be no such thing as routine bore care. Over the many years of shooting, I have learned that each bore is different from all others … not only in dimen- sion or rifl ing confi guration, but more important, the state of the bore’s surface. Regardless of bore manufacturing meth- ods — button rifl ed, hammer forged, or hook rifl ed — the fi nished bore surfaces will differ to some degree. Even if bores are carefully lapped, there will be differ- ences in surface, one to another. Further, as a bore is used, these differences will change, as well as the differences from breech to muzzle within a bore ... much like changes in our bodies. Before the introduction of the
Shown here at top is a bore cleaning protection tube made and used by author. This cleaning tube was made from a golf club shaft, which is graduated in step-down segments that can be selected to closely fi t a rifl e chamber. The electrical tape winding is used to fi t the shaft to the bolt hole size. A cleaning tube also can be made from a length of rigid copper or bronze tubing (at bottom) fi tted to a cartridge specifi c to the chamber/bore of the rifl e being cleaned.
bore scope, we rifl emen pretty much relied on lesser means of examining a bore. I had designed some magnifi ed bore scopes that utilized a prism where I could view several inches of the bore longitudinally, but I really couldn’t see the bore at right angles to its surface where it really needed viewing. So, to clean a bore properly it will be to our ad- vantage to know the surface condition of the bore in its entirety … from throat to muzzle. Our primary concern inside the bore will be heat erosion, copper, and/or lead and carbon deposits. All these will have a bearing on the bullet’s passage up the bore, affecting both bul- let velocity and accuracy. In most cases we must live with
bore wear and erosion as it tends to hasten the build-up of carbon and cop-
per. Bores can be polished with mild abrasives as a means of restoring the surface, or by fi re-lapping where abra- sive coated bullets are fi red through the bore. I have also developed a sys- tem that I have named shoot-lapping, whereby the bore, per se, is coated with a mild abrasive material prior to each shot. This system works extremely well. In any case, we must deal with the ever-increasing cause of fouling build- up in the bore if we wish to maintain top accuracy. I will discuss briefly what I do
with carbon in my rifl e bores. Carbon is identifi ed as a black stain on both the lands and grooves, often seen in the fi rst half of the breech end of the bore and toward the middle of the bore. Carbon is extremely hard and most diffi cult to
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Page 75 $69.95
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