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Rifles, Reloading, Optics, Equipment
Gunsmithing
? about bad barrel blank
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<blockquote data-quote="J E Custom" data-source="post: 1772766" data-attributes="member: 2736"><p>Once you cut on a barrel blank, You are done with many manufactures and in away you can see their point. With that said, Chalk it up to experience and the cost of learning A good skill.</p><p></p><p>In the beginning, I found poor barrels and simply rejected them before I cut on them because I didn't know how to fix them. I worked out a good way to check them that cured 90% of this problem and started keeping records on the rejected barrel manufactures. It soon became obvious who produced the best quality consistently and who I didn't need to buy from any more.</p><p></p><p>I also talked to some of my favorite barrel makers and got their opinion on what was a reasonable amount of runout. Much to my surprise, One said "actuality you shouldn't have any, but we try to hold it below .0005 and to a maximum of .0015 after explaining my test procedure, He stated that If I found one of his barrels with more than .001 thousandths runout give him a call and he would send me a new barrel and try not to hold me up by waiting to get the rejected barrel back.</p><p></p><p>To date I have not rejected one of his barrels so I don't know about the replacement deal we made. I have unfortunately rejected one or more of every other brand I have tried and caught flack and poor customer service from most. some even told me that the industry standard was .007 to .010 runout. (I don't/won't use these barrels).</p><p></p><p>The point is, test all barrels before you cut on it and decide to except or reject it and live with your decision. In the old days barrel makers straightened there barrels because of bore runout. Now with the latest equipment and testing instruments, the problem has diminished considerably and only their acceptance is in questioned as to how much they will allow and ship to the customer.</p><p></p><p>You can't make a silk purse out of a sows ear (Quoting a fellow member) so start with as good a barrel as you can and as you perfect the Smithing part, accuracy will improve. As you progress, try to improve every operation of the work.</p><p></p><p>Just My opinion and process.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1772766, member: 2736"] Once you cut on a barrel blank, You are done with many manufactures and in away you can see their point. With that said, Chalk it up to experience and the cost of learning A good skill. In the beginning, I found poor barrels and simply rejected them before I cut on them because I didn't know how to fix them. I worked out a good way to check them that cured 90% of this problem and started keeping records on the rejected barrel manufactures. It soon became obvious who produced the best quality consistently and who I didn't need to buy from any more. I also talked to some of my favorite barrel makers and got their opinion on what was a reasonable amount of runout. Much to my surprise, One said "actuality you shouldn't have any, but we try to hold it below .0005 and to a maximum of .0015 after explaining my test procedure, He stated that If I found one of his barrels with more than .001 thousandths runout give him a call and he would send me a new barrel and try not to hold me up by waiting to get the rejected barrel back. To date I have not rejected one of his barrels so I don't know about the replacement deal we made. I have unfortunately rejected one or more of every other brand I have tried and caught flack and poor customer service from most. some even told me that the industry standard was .007 to .010 runout. (I don't/won't use these barrels). The point is, test all barrels before you cut on it and decide to except or reject it and live with your decision. In the old days barrel makers straightened there barrels because of bore runout. Now with the latest equipment and testing instruments, the problem has diminished considerably and only their acceptance is in questioned as to how much they will allow and ship to the customer. You can't make a silk purse out of a sows ear (Quoting a fellow member) so start with as good a barrel as you can and as you perfect the Smithing part, accuracy will improve. As you progress, try to improve every operation of the work. Just My opinion and process. J E CUSTOM [/QUOTE]
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? about bad barrel blank
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