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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
300 Ham'r Velocity Not Up To Expectations
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<blockquote data-quote="Tony243" data-source="post: 1820157" data-attributes="member: 85717"><p>I did exactly what you mentioned this past weekend, Tim. I loaded five rounds each, starting at 27.6gr of CFEBLK (max recommended by Wilson), and worked up to 28.2gr in 0.1gr increments. I also loaded with CCI 450 primers. Velocity climbed nicely and groups remained sub MOA except at 28.0 grains. SD was single digits for all loads, and velocity peaked at 2442fps avg at 28.2gr. Absolutely no signs of flat primers or ejector marks! So I guess Wilson's max load data is conservative, as is usually the case. Barrel probably loosened up some too, and I'm assuming the magnum primers helped as well. I'm happy now!</p><p>P.S. Group size at 28.2gr was 0.757" <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Tony243, post: 1820157, member: 85717"] I did exactly what you mentioned this past weekend, Tim. I loaded five rounds each, starting at 27.6gr of CFEBLK (max recommended by Wilson), and worked up to 28.2gr in 0.1gr increments. I also loaded with CCI 450 primers. Velocity climbed nicely and groups remained sub MOA except at 28.0 grains. SD was single digits for all loads, and velocity peaked at 2442fps avg at 28.2gr. Absolutely no signs of flat primers or ejector marks! So I guess Wilson's max load data is conservative, as is usually the case. Barrel probably loosened up some too, and I'm assuming the magnum primers helped as well. I'm happy now! P.S. Group size at 28.2gr was 0.757" :) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
300 Ham'r Velocity Not Up To Expectations
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