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Rifles, Reloading, Optics, Equipment
Reloading
I need some help explaining this one
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<blockquote data-quote="Buffalobob" data-source="post: 73125" data-attributes="member: 8"><p>I guess several of us all did the same thing at once and started neck turning. Two points of difference in my amatuer understanding of the instructions. First was to uniform the primer pockets after the first firing. Secondly, I full lenght sized and trimmed the once fired cases before neck turning and cleaning up about 75-80%(stage 2 brass). Group size was not too good with this stage of the brass and grew about as much as you describe. At Mifflin with the factory off center chambered 17 Rem I shot the first two distances with stage two brass and the 500yd with the stage three final neck sized brass. Group size could not be measured at 500 yds because I was just adjusting left or right as JB told me. I do not know yet what group size the final brass is shooting</p><p></p><p>Being about as confused as you, I think there are two schools of thought.</p><p></p><p>School #1 With a factory chamber you should not neck turn because it just causes the bullet to be low in the throat. </p><p></p><p>School #2 With a factory chamber it is good to neck turn to get uniform neck tension on the bullet.</p><p></p><p>It seemed to me everybody was pretty consistent that with a custom chamber neck turning was good.</p><p></p><p>These are just my thoughts being as I am very new to neck turning and saw my group sizes grow as yours did and I hope mine settle back down.</p><p></p><p>In case you need to feel better, I ruined about $60 dollars of brass doing all of this wrong the first time. I just look at it as an investment in the future.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 73125, member: 8"] I guess several of us all did the same thing at once and started neck turning. Two points of difference in my amatuer understanding of the instructions. First was to uniform the primer pockets after the first firing. Secondly, I full lenght sized and trimmed the once fired cases before neck turning and cleaning up about 75-80%(stage 2 brass). Group size was not too good with this stage of the brass and grew about as much as you describe. At Mifflin with the factory off center chambered 17 Rem I shot the first two distances with stage two brass and the 500yd with the stage three final neck sized brass. Group size could not be measured at 500 yds because I was just adjusting left or right as JB told me. I do not know yet what group size the final brass is shooting Being about as confused as you, I think there are two schools of thought. School #1 With a factory chamber you should not neck turn because it just causes the bullet to be low in the throat. School #2 With a factory chamber it is good to neck turn to get uniform neck tension on the bullet. It seemed to me everybody was pretty consistent that with a custom chamber neck turning was good. These are just my thoughts being as I am very new to neck turning and saw my group sizes grow as yours did and I hope mine settle back down. In case you need to feel better, I ruined about $60 dollars of brass doing all of this wrong the first time. I just look at it as an investment in the future. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
I need some help explaining this one
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