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Rifles, Reloading, Optics, Equipment
Reloading
Run-out: what do you do?
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<blockquote data-quote="Trickymissfit" data-source="post: 982106" data-attributes="member: 25383"><p>Mike; I agree with you 110%, but that also assuming that everything else is good to go. The Poster never stated what kind of run out he was fighting. Two thousandths or twenty thousandths? Are the dies squared up in the press? Is the equipment good to go? I don't care whatkind of a die you use to size cases; if kit's not square you are in trouble. Bad cases make seating useless. So that's where I'd be looking to take at least two thousandths out of the run out. How is he checking the cases and the loaded rounds as well?</p><p> </p><p>Brother inlaw was fighting .0085" with Lee dies and a Lee cast iron press. He brought some cases over to my house and we resized them with my setup. Came in under two thousandths TIR. But on the otherhand I couldn't straiten out the bad ones (only the fired cases). We then went over to his house, and the first thing I did was to square up his sizing die. Got about .0035" run out. He was happy, and I wasn't. I removed the shell holder, and lightly stoned the area it seats on. Found another burr inside the bore. Fixed that, and we were getting .0025" runout. I told him that we'd be lucky to see .004" TIR with the bullet seated. We changed seaters with a Forster I normally use, and was seeing .0033" TIR. Now the problems that are left are in the first operation and the cases themselves. He bought a set of standard Co-Ax dies thinking this was the quick fix. It wasn't! A few days later he dropped by to ask me how the check his press for wear (it was pretty tight). Off we go to his house with a couple .0005" indicators and some other home built tools. His ram was showing about .0018" error, but the top of the ram had a problem. I had him take it into work, and I touched up the top of the ram. I also found out the bore in the bottom was not square with the ram. I set it up and bored that out, and shrank in an inner race from a needle bearing. Then ground it for .0015" clearance. Took another .001" out of the sized cases! He now loads ammo with about .0022" TIR. Funny thing was that while I was rebuilding the ram, he bought a Co-Ax press. It was slightly better, but other than doing the sizing work easier, not much else. Larry did some experimenting with shell holders and saw variance between them, but don't trust his methods.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 982106, member: 25383"] Mike; I agree with you 110%, but that also assuming that everything else is good to go. The Poster never stated what kind of run out he was fighting. Two thousandths or twenty thousandths? Are the dies squared up in the press? Is the equipment good to go? I don't care whatkind of a die you use to size cases; if kit's not square you are in trouble. Bad cases make seating useless. So that's where I'd be looking to take at least two thousandths out of the run out. How is he checking the cases and the loaded rounds as well? Brother inlaw was fighting .0085" with Lee dies and a Lee cast iron press. He brought some cases over to my house and we resized them with my setup. Came in under two thousandths TIR. But on the otherhand I couldn't straiten out the bad ones (only the fired cases). We then went over to his house, and the first thing I did was to square up his sizing die. Got about .0035" run out. He was happy, and I wasn't. I removed the shell holder, and lightly stoned the area it seats on. Found another burr inside the bore. Fixed that, and we were getting .0025" runout. I told him that we'd be lucky to see .004" TIR with the bullet seated. We changed seaters with a Forster I normally use, and was seeing .0033" TIR. Now the problems that are left are in the first operation and the cases themselves. He bought a set of standard Co-Ax dies thinking this was the quick fix. It wasn't! A few days later he dropped by to ask me how the check his press for wear (it was pretty tight). Off we go to his house with a couple .0005" indicators and some other home built tools. His ram was showing about .0018" error, but the top of the ram had a problem. I had him take it into work, and I touched up the top of the ram. I also found out the bore in the bottom was not square with the ram. I set it up and bored that out, and shrank in an inner race from a needle bearing. Then ground it for .0015" clearance. Took another .001" out of the sized cases! He now loads ammo with about .0022" TIR. Funny thing was that while I was rebuilding the ram, he bought a Co-Ax press. It was slightly better, but other than doing the sizing work easier, not much else. Larry did some experimenting with shell holders and saw variance between them, but don't trust his methods. gary [/QUOTE]
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Run-out: what do you do?
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