How offen do you clean your revolver paying close attention to the forcing cone. Once the forcing cone cracks, all accuracy goes out the window. Cracked forcing cone the firearms forum the buying. I do not have any forcing cone damage on my revolvers that look like that and i have owned them for many years and shot s of full power rounds through them. All ptg reamers and cutting tools are designed to work with petroleumbased lubricant. The forcing cone guides the projectile out of the larger chamber into the. I think the issue of cracked forcing cones is way overdone. Smith and wesson kframe revolver barrel removal and. Revolver forcing cone tools 22 rimfire 4d reamer rentals.
The leading section of the tool, however, cuts more rapidly, and blends into the body of the tool at chamber diameter. Forcing cone cracked in my colleagues gp 100 after shooting around. Bullet jumps cylinder gap into barrel forcing cone. Results would likely be best with jacketed bullets. Colt 2nd gen 45 saa 125th anniversary first year unfired. Some of this is due to the milled flat spot at the bottom of the forcing cone. How is a cartridge in a revolver perfectly aligned with the inlet of the.
Time to get out the microscope or magnifying glass. The forcing cone is the face of the barrel inside the frame, and will crack or erode more quickly as. I have no noticeable wear in the forcing cone area. The action trigger is the best that i have in revolver and i would hate to give. Ruger will fix their guns, but i cant imagine how many round itd take to crack a ruger sa forcing cone. What happens to all of the model 19s with cracked forcing cones. The cracks occur much more frequently with 125 grain. The model 19 developed a history of cracked forcing cones, usually occurring at the 6. Either youre astronomically unlucky, or something aint right. Id like this gun to have the rifling wear out before the forcing cone, though. The two most difficult and critical revolver smith jobs are replacing a barrel. So, the cracked forcing cone may happen faster with the 125 grain bullets, but it can.
The alignment of parts in a revolver is called timing. Forcing cone tools rentals archives 4d reamer rentals. Eliminates lead shaving or spitting in one or two passes. This flat made the bottom of the forcing cone a little thin, which was no. I clean my k frames magnums and my 38 special revolvers thoroughly especially around the forcing cone every 50 rounds or less. My advice before buying a revolver, check your dealers reputation. The forcing cone looked like it had been worked on with a cutting torch, besides the crack. The forcing cone is the little stub of barrel opening that sticks through the. Jframe 38357 revolvers hold 5 shots while kframes in hold six. The reason i am asking these questions is even the built like. The only way to fix a cracked forcing cone is to replace the barrel. In the attached photo you can see the flat region on the bottom of. I am the original owner of this pistol, having been given to me in high school about 1982, its a model 194.
They are marked 11 degree, but they are twice as steep as the brownells 11 degree cutter. The table shows that the sp101 might be thought of as a jframe on steroids, a compact revolver that has been beefed up in critical areas. Includes the 22 degree forcing cone cutter, rod, thandle and bushing where needed. Cracks usually occurred at the forcing cones 6 oclock position. This revolver has been handled and enjoyed, but there is no evidence we can find ever having fired a cartridge. It was three or four years after i bought the revolver. Use on the chamber throat to help rounds drop in easily. The cylinder face is nice and clean with unblemished blue, as is the recoil shield breech face and the forcing cone is bright with no carbon deposits. Note also that the forcing cone on the sp101 is equivalent to that on the kframe rather than the j. Forcing cone crack 2nd update from mri singleactions. Waterbased lubricant can give acceptable results, however the life of the tool will be reduced. They are too valuable to use a diet of magnums in them and crack or damage the forcing cone. When introduced, the kframe revolvers, due to their many desirable.
Furthermore, most gunsmiths report the newer smith and wesson revolvers will often break when a barrel is removed so it is important to proceed with. Revolver forcing cone cutters pacific tool and gauge. Cracked ruger super blackhawk barrel gunboards dot com. One of the weaknesses in the kframe is in the cut on the bottom of the barrel throat, in the forcing cone area, to accommodate the cylinder swing. The k frame magnums have a flat section of the forcing cone that is prone to cracking with the use of hypervelocity lightweight 357 magnum ammo such as 110 or 125 grain. My beloved sw model 19 357 developed a cracked forcing cone yesterday. Until the introduction of this kit, tools of this type were almost impossible to obtain commercially, and even the most proficient pistolsmiths seldom had chamfering tools of such excellent design and high quality for use in the modern revolver. Looking at it close, it doesnt look like the line continues on either the external or internal side of the barrel.
My sp101 357 mag has a crack located at the 6 oclock position. But i know of a fellow shooter that wore his gp100 out in the forcing cone area shooting 125 gr high velocity ammo. If you arent careful with how you hold the frame, it can crack, bend or break. This is what is happening now with my accurized revolver.
Highest quality gunsmith tools, including revolver forcing cone cutters at pacific tool and gauge. Cracked forcing cone page 2 the firearms forum the. Cracked forcing cone the firearms forum the buying, selling. The forcing cone is a very critical and sensitive area that greatly affects accuracy and. People occasionally shoot them loose with thousands of max loads, but ive never seen a cracked cone. If youre interested in how this happened, then please read below.
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