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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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<blockquote data-quote="Gcan" data-source="post: 1804111" data-attributes="member: 102867"><p>I keep hearing, "the competitive guys full length size". I find the general statement somewhat misleading or overly broad. The statement suggests the comp guys are the same as the guy usually asking the question, as though it is apples to apples. Its not! </p><p></p><p></p><p>Yes, I full length on all hunting and some precision rifles. However, I like the bench folk I know, had a reamer ground to match the dies used or dies made to match the reamer used. </p><p></p><p>The very idea that you can shoot rounds in just any chamber and then FL size with just any SAAMI die and then get the magic dimensions that produce a combo that shoots bug holes is unrealistic. Although I will concede that uncle Jethro might have an O3-A3 that shoots bugholes. </p><p></p><p>In the real world the guys who are shooting for excellence have $$$$$ tied up in a rifle/scope/gear. To think they just threw a dart to buy dies is ^*+#~!</p><p></p><p>we all probably have our own thoughts on max growth tolerances for body to chamber, OA growth, as well as throat growth. I don't know any serious shooter who FL sizes regularly unless they have dies matched to their chambers or chambers matched to their dies. And unless all the stars align, SAAMI dies are not Going to do it. THE difference between a SAAMI FL die and a SAAMI Reamer when you have the max spec on the Chamber and the min spec on the die can be huge in body OD and length growth. Add to the built in differences inherent in the chambering process/set up from one smith to the next and cases can grow .010+ in length from FL SAAMI sizing to shooting and similar body growth. Ain't nobody shooting 1/8 to 1/4 moa or less with cases growing .008 or more (in any direction) with each firing. </p><p></p><p></p><p>I agree with everyone who says Prep-Prep-Prep. Doesn't matter how good your chamber/die relationship is, Garbage in. Garbage out.</p></blockquote><p></p>
[QUOTE="Gcan, post: 1804111, member: 102867"] I keep hearing, “the competitive guys full length size”. I find the general statement somewhat misleading or overly broad. The statement suggests the comp guys are the same as the guy usually asking the question, as though it is apples to apples. Its not! Yes, I full length on all hunting and some precision rifles. However, I like the bench folk I know, had a reamer ground to match the dies used or dies made to match the reamer used. The very idea that you can shoot rounds in just any chamber and then FL size with just any SAAMI die and then get the magic dimensions that produce a combo that shoots bug holes is unrealistic. Although I will concede that uncle Jethro might have an O3-A3 that shoots bugholes. In the real world the guys who are shooting for excellence have $$$$$ tied up in a rifle/scope/gear. To think they just threw a dart to buy dies is ^*+#~! we all probably have our own thoughts on max growth tolerances for body to chamber, OA growth, as well as throat growth. I don’t know any serious shooter who FL sizes regularly unless they have dies matched to their chambers or chambers matched to their dies. And unless all the stars align, SAAMI dies are not Going to do it. THE difference between a SAAMI FL die and a SAAMI Reamer when you have the max spec on the Chamber and the min spec on the die can be huge in body OD and length growth. Add to the built in differences inherent in the chambering process/set up from one smith to the next and cases can grow .010+ in length from FL SAAMI sizing to shooting and similar body growth. Ain’t nobody shooting 1/8 to 1/4 moa or less with cases growing .008 or more (in any direction) with each firing. I agree with everyone who says Prep-Prep-Prep. Doesn't matter how good your chamber/die relationship is, Garbage in. Garbage out. [/QUOTE]
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Full Length or Neck Only; What's Best Resizing for Accuracy?
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