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yesterday after posting on this thread I loaded 50 rounds of .260 for breaking in a new barrel. The first 25 I just resized with the full length RCBS X die, the next 25 I used the X Die than the Lee collet with the decapping pin cut off. Bullets were seated with a Forster micrometer adjust seating die. After loading the concentricity was checked using a Hornady lathe equipped with a .0005 dial indicator. Average runout for the full length die only averaged .0015 runout with a couple of outliers in the .003 - .004 range. When the Lee collet was used afterward was .00075 average with outliers in the .002 range. The Lees work for me at least, try it yourself . With the Lee I actually size the neck twice with the case being rotated 90 degrees before the second stroke.
Warning - Don't expect to win any speed records using my loading techniques
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“How do I get to the next level?” Well, you get to the next level by being the first one on the range and the last one to leave.” – Jerry Miculek
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