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Rifles, Reloading, Optics, Equipment
Reloading
28 Nosler runout issues
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<blockquote data-quote="Blackhawk" data-source="post: 1893110" data-attributes="member: 105459"><p><em><strong>The following is a list of questions posed for your consideration !</strong></em></p><p><em><strong>Since your dies are of a very high quality & the response's to your </strong></em><strong><em>dilemma are all viable , I pose to you the following questions.</em></strong></p><p></p><p><em>How old is your press?</em></p><p><em>How much play is there between your ram and the press frame?</em></p><p><em>Is your press itself of a reliable build?</em></p><p><em>Is it a single stage, a turret , or a progressive ?</em></p><p><em>Each press has inherent differences and perhaps issiues !( mainly alignment)</em></p><p><em>Is it cast , or of a composite aluminum metal? Older presses were constructed from steel while newer ones may be be made from a mixture of metal and aluminum.</em></p><p><em>Has it been properly maintained , with periodic cleaning, and lubrication?</em></p><p><em>Finally is the 7/8" x 14 TPI tapped hole or holes, in alignment with your press fra</em>m<em>e itself?</em></p><p><em>Are your experiencing any signs of play while seating your dies?</em></p><p><em>How old and what shape are your dies themselves in?</em></p><p><em>When did last take them apart for a deep cleaning?</em></p><p><em>How would you know about the alignment anyway?</em></p><p><em>Well if I have got you thinking about this which I hope I have please read on.</em></p><p><em>If your ram is showing any wiggle at all while sliding up and down in the frame you may be exhibiting signs of excessive wear.</em></p><p><em>if your turret (if you have a turret press) is exhibiting any play between the rotation of stations you again may have an alignment problem .</em></p><p><em>If your dies are stationary but your shell plate indexes between stations, dose it click smartly into place have any play before it stops indexing?</em></p><p><em>So take your press completely apart and deep clean and re lubricate all your components , as this is a good defensive measure.</em></p><p><em>Pay attention to all of your dies and there respective components and clean them as well if need be.</em></p><p><em>Now if all appears to be in order so far what I would do next is check the run out by indicating the bullets TIR on a run out gage. Perform this on a factory new round, as this will be your standard. However not all factory ammo is perfect and you may have to indicate a few rounds before selecting one for your standard. Pay attention and write down each case's run out and establish an average TIR. (write this down for further referencing)</em></p><p><em>As you have indicated you are experiencing a .004" TIR on a fired case but is that before or after a full length resizing operation?</em></p><p><em>Just for the heck of it check a case that has been fired but nor FL resized for run out (Total Indicated Runout or Reading)</em></p><p><em>How much run out you have now that your brass has been fire formed will indicate if you are experiencing any chamber reaming / alignment problems as this fire formed case has expanded to your chambers exact dimensions.</em></p><p><em>After FL resizing (I assume using a match grade die set with the correct neck tension bushing installed) make certain to trim to length then bump my shoulder to establish the -.002" , then finally anneal your brass.</em></p><p><em>Next turn your brass case necks O.D. to a -.0002" - -.0005" O.D. in order to true up your virgin or once fired without neck turning case necks run out.</em></p><p><em>You are finally ready to completely assemble your bullet and check the TIR.</em></p><p><em>If you are still having a run out of more than say .0002" to .0007" your dies would be suspect, however before we come to that conclusion I would perform the same reloading procedures that you are using by using the same set of dies, <strong>only on another press </strong>.</em></p><p><em>If you do not have another reloading press ask a fellow reloader that you trust<strong> if you can hand load several rounds </strong>using his quality press but your dies. (the press itself for the sake of comparison must be of reputable manufacturer and in great shape or if it is not find someone that dose has have one before proceeding any further)</em></p><p><em>Examine your outcome carefully and indicate your hands loads for run out !</em></p><p><em>In this manner you can determine if your problem lies with either your press or the respective die set and act accordingly.</em></p><p><em>In the case of a progresive or turret press use a high quality single stage just to make certain that your press itself is not the culprit.(Every reloader that I know has at least one good single stage press, usually for rifle ammunition)</em></p><p><em>Don't forget to bring along your shell holder.</em></p><p><em>OBTW shell holders also can show wear especially if you you use them in conjunction with power tools such as neck turning ,or case trimming operations that require the use of a shell holder.</em></p><p><em>In that light I always use just one shell holder exclusively in my press and spare ones I use for the afore mentioned procedures.</em></p><p><em>I really hope that this will help !</em></p><p><em><strong>Just My 2 Cents Worth</strong></em></p></blockquote><p></p>
[QUOTE="Blackhawk, post: 1893110, member: 105459"] [I][B]The following is a list of questions posed for your consideration ! Since your dies are of a very high quality & the response's to your [/B][/I][B][I]dilemma are all viable , I pose to you the following questions.[/I][/B] [I]How old is your press? How much play is there between your ram and the press frame? Is your press itself of a reliable build? Is it a single stage, a turret , or a progressive ? Each press has inherent differences and perhaps issiues !( mainly alignment) Is it cast , or of a composite aluminum metal? Older presses were constructed from steel while newer ones may be be made from a mixture of metal and aluminum. Has it been properly maintained , with periodic cleaning, and lubrication? Finally is the 7/8" x 14 TPI tapped hole or holes, in alignment with your press fra[/I]m[I]e itself? Are your experiencing any signs of play while seating your dies? How old and what shape are your dies themselves in? When did last take them apart for a deep cleaning? How would you know about the alignment anyway? Well if I have got you thinking about this which I hope I have please read on. If your ram is showing any wiggle at all while sliding up and down in the frame you may be exhibiting signs of excessive wear. if your turret (if you have a turret press) is exhibiting any play between the rotation of stations you again may have an alignment problem . If your dies are stationary but your shell plate indexes between stations, dose it click smartly into place have any play before it stops indexing? So take your press completely apart and deep clean and re lubricate all your components , as this is a good defensive measure. Pay attention to all of your dies and there respective components and clean them as well if need be. Now if all appears to be in order so far what I would do next is check the run out by indicating the bullets TIR on a run out gage. Perform this on a factory new round, as this will be your standard. However not all factory ammo is perfect and you may have to indicate a few rounds before selecting one for your standard. Pay attention and write down each case's run out and establish an average TIR. (write this down for further referencing) As you have indicated you are experiencing a .004" TIR on a fired case but is that before or after a full length resizing operation? Just for the heck of it check a case that has been fired but nor FL resized for run out (Total Indicated Runout or Reading) How much run out you have now that your brass has been fire formed will indicate if you are experiencing any chamber reaming / alignment problems as this fire formed case has expanded to your chambers exact dimensions. After FL resizing (I assume using a match grade die set with the correct neck tension bushing installed) make certain to trim to length then bump my shoulder to establish the -.002" , then finally anneal your brass. Next turn your brass case necks O.D. to a -.0002" - -.0005" O.D. in order to true up your virgin or once fired without neck turning case necks run out. You are finally ready to completely assemble your bullet and check the TIR. If you are still having a run out of more than say .0002" to .0007" your dies would be suspect, however before we come to that conclusion I would perform the same reloading procedures that you are using by using the same set of dies, [B]only on another press [/B]. If you do not have another reloading press ask a fellow reloader that you trust[B] if you can hand load several rounds [/B]using his quality press but your dies. (the press itself for the sake of comparison must be of reputable manufacturer and in great shape or if it is not find someone that dose has have one before proceeding any further) Examine your outcome carefully and indicate your hands loads for run out ! In this manner you can determine if your problem lies with either your press or the respective die set and act accordingly. In the case of a progresive or turret press use a high quality single stage just to make certain that your press itself is not the culprit.(Every reloader that I know has at least one good single stage press, usually for rifle ammunition) Don't forget to bring along your shell holder. OBTW shell holders also can show wear especially if you you use them in conjunction with power tools such as neck turning ,or case trimming operations that require the use of a shell holder. In that light I always use just one shell holder exclusively in my press and spare ones I use for the afore mentioned procedures. I really hope that this will help ! [B]Just My 2 Cents Worth[/B][/I] [/QUOTE]
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28 Nosler runout issues
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