Ask the gunsmith: stones for sears.
A More often than not in a typical situation I will do most of the work with a fine India stone. If I have a lot of steel to remove because the angle of the sear needs major modification or reduction, I may start out with a medium grit India stone and then follow up with the fine India stone. After using the India stones which are basically for steel removal, I use a fine Arkansas stone or sometimes a ceramic stone to polish the new sear surface. It's important to polish the newly cut sear surface to remove any tiny serrations left from the India stones. This will result in a truly smooth surface which you must have for a clean, crisp trigger pull. By the way, I also make liberal use of oil with the stones to keep metal particles from embedding and to reduce wear to the stones. When using my ceramic stones, I use water instead of oil.
Q I have an older Smith & Wesson.38 Spl. revolver that hasserved me well for more than 30 years with never a hintof trouble. Recently at the range when firing the revolverdouble-action, the cylinder did not lock up and turned past thenormal locking position. What could have caused this?
A There are a number of possibilities as to the cause of this malfunction. The cylinder stop or bolt might have been blocked by an accumulation of dirt or fouling. This might have prevented the stop from seating fully in the locking notch in the cylinder. Also, there is a possibility of a burr or displaced metal on the side of the locking notch that kept the cylinder stop from seating in the notch.
Q The wood forearm on my Remington 870 pump shotgun is loose. How can I tighten it?
A The forearm on the 870 is secured by a round threaded nut inside the muzzle end of the forearm. The best method of tightening this slotted nut is to use a wrench that fits over the magazine tube. This eliminates the need to remove the forearm assembly from the gun to tighten the nut. Just slide the wrench over the magazine tube after removing the mag cap and barrel and engage the dual projecting blades or teeth of the wrench in the two slots in the nut. To tighten the forearm, turn the wrench in a clockwise direction. To loosen or remove the nut you just turn the forearm wrench counterclockwise.
Recently I obtained a set of forearm nut wrenches produced by Advanced Technology International USA, LLC, 2733 West Carmen Ave., Dept. SGN, Milwaukee, WI 53209, telephone 800-925-2522. This set of shotgun forearm wrenches covers the Remington 870 in both 12 and 20 gauges, the Mossberg 500 series guns, and the Winchester 1200 and 1300 shotgun.
The wrench set is made of anodized 6061 T6 aluminum and is beautifully machined. In fact, it's the best lookin' set of forearm wrenches I've ever seen. They have a-nice knurled surface for a firm grip when tightening the forearm nut. If you need some extra torque, and you often do when loosening a stuck nut, there is a 19/64" diameter hole in the end of the wrench for a cheater bar or rod. The set sells for a suggested MSRP of $49.99 and is one heck of a bargain. Some folks charge a lot more for just a single wrench. If you're doin' shotgun work on the 870 or 500 series guns, this is definitely the wrench set to have. I could not be more pleased with my set.
Q I see a number of ads for really inexpensive drill sets made in China. Have you had any experience with them and what would you recommend? American made drills are pretty darn expensive!
A You're right; you do normally pay a lot more for American-made drills. That's the bad news. The good news is that they're worth itl Almost all the cheap Chinese drills I've used have been little short of worthless. The ones I've use just didn't hold up to repeated use. I would suggest you go ahead and buy American made drills. You'll pay more initially but they'll generally give you much better service and longevity.
|Printer friendly Cite/link Email Feedback|
|Date:||Dec 10, 2011|
|Previous Article:||Modernizing the SKS part 3: in part 2, (11/10 issue), Coffield fabricated a rear magazine latch, installed a U.S.-made trigger and fitted the stock....|
|Next Article:||'Shall not be infringed except ...'.|