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Rifles, Reloading, Optics, Equipment
Reloading
7mm ultra mag
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<blockquote data-quote="dok7mm" data-source="post: 1159510" data-attributes="member: 90080"><p>Chris, I would load up 3 rounds of US869 in .3 gr increments (so you don't miss a sweet spot), starting @ MIN Charge and work my way up, while monitoring CLOSELY for pressure signs, ie- brass shavings or ejector smears on case head, primer cratering and bolt lift. Let rifle cool between shots for best accuracy and you should find a low end and a high end accuracy node. Depending on your brass prep, your case volumes will vary, as will your pressure, even w/ the same charge. IF you run&gun your way thru this stage of load development, you will learn nothing. Remember all guns are different in the charges and bullets, they will shoot accurately or safely. If you detect pressure signs, back off the charge and look for a lower node. Consistent preparation of brass, primer seating, powder charging weights,and base to ogive bullet seating should be your top priority at this stage. Hope you have success with your reloading, just remember to maintain a good record book, measure everything twice and be safe.</p></blockquote><p></p>
[QUOTE="dok7mm, post: 1159510, member: 90080"] Chris, I would load up 3 rounds of US869 in .3 gr increments (so you don't miss a sweet spot), starting @ MIN Charge and work my way up, while monitoring CLOSELY for pressure signs, ie- brass shavings or ejector smears on case head, primer cratering and bolt lift. Let rifle cool between shots for best accuracy and you should find a low end and a high end accuracy node. Depending on your brass prep, your case volumes will vary, as will your pressure, even w/ the same charge. IF you run&gun your way thru this stage of load development, you will learn nothing. Remember all guns are different in the charges and bullets, they will shoot accurately or safely. If you detect pressure signs, back off the charge and look for a lower node. Consistent preparation of brass, primer seating, powder charging weights,and base to ogive bullet seating should be your top priority at this stage. Hope you have success with your reloading, just remember to maintain a good record book, measure everything twice and be safe. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm ultra mag
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