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Posted: 4/8/2016 6:36:04 PM EDT
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Collected brass from 3 rifles right after shooting each, bagging and tagging them. Measured them with RCBS Precision Mic: Rifle 1 had three at .000 and ten at .001; Rifle 2 had six at .005, four at .006, three at .007; Rifle 3 had one at .001, nine at .002, seven at .003, one at .004.
Question 1 - Is this variance normal? Question 2 - I just reloaded 14 rounds to check my current headspace setting for my sizing die and came up with four at .000, six at -.001, two at -.002 and two at -.003. Is this variance ok for a Dillon 550? Question 3 - Should I leave my dies alone and load for all 3? If not, what would you set it at and why? Thanks in advance! |
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1. Probably, due to brass springback. Same or mixed brass? Same amount of firings? 2. Same as 1, and Lube on the inside of the necks? 3. I use these when switching between rifles: http://redding-reloading.com/online-catalog/35-competition-shellholder-sets Or just keep sizing for the tightest one. ETA: Inb4 the move to Reloading. |
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Quoted:
1. Probably, due to brass springback. Same or mixed brass? Same amount of firings? 2. Same as 1, and Lube on the inside of the necks? 3. I use these when switching between rifles: http://redding-reloading.com/online-catalog/35-competition-shellholder-sets Or just keep sizing for the tightest one. ETA: Inb4 the move to Reloading. Once fired military brass, cleaned, swaged, sized and trimmed on Giraud trimmer. I don't lube inside necks. |
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Quoted: Once fired military brass, cleaned, swaged, sized and trimmed on Giraud trimmer. I don't lube inside necks. I suggest trying it. Smoother sizing (main reason I do) and less likely that the expander will pull the shoulder back out a little (what many in the reloading forum state). It could also reduce variance. |
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