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Rifles, Reloading, Optics, Equipment
Reloading
Using chronograph data to determine the best load????
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<blockquote data-quote="BountyHunter" data-source="post: 92857" data-attributes="member: 12"><p>Disagee with Bart on this one and green 788. If you have a very accurate gun a chrono will help you find the tuning nodes for that gun. Just got to understand what it is telling you, if you don't then yes forget using one.</p><p></p><p>I use the ladder method to ID nodes by both grouping on paper and chrono results. Guess what, they normally match up, when a close powder charge range groups on a ladder it will also group very closely on velocity on the chrono. I can pick the tuning node in the MV range I want and normally pick a weight in the middle of the node to take care of any variances with temp or pressure spikes. </p><p></p><p>Green 788 OCW method works to find an acceptable load (ie .5MOA maybe in most guns) but it will not normally find the most accurate load for a really accurate gun (.25 MOA or better).</p><p></p><p>As far as PMC being the best primer for what I do not know. The equip list for matches sure do not back that up for being the most accurate across the board. The best is what works best in your gun. </p><p></p><p>F210s in most LR BR guns, RWS and even the Russian primers are the most common on the equip lists. As we test everything, we use the most accurate and I normally use F210 and RWS.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 92857, member: 12"] Disagee with Bart on this one and green 788. If you have a very accurate gun a chrono will help you find the tuning nodes for that gun. Just got to understand what it is telling you, if you don't then yes forget using one. I use the ladder method to ID nodes by both grouping on paper and chrono results. Guess what, they normally match up, when a close powder charge range groups on a ladder it will also group very closely on velocity on the chrono. I can pick the tuning node in the MV range I want and normally pick a weight in the middle of the node to take care of any variances with temp or pressure spikes. Green 788 OCW method works to find an acceptable load (ie .5MOA maybe in most guns) but it will not normally find the most accurate load for a really accurate gun (.25 MOA or better). As far as PMC being the best primer for what I do not know. The equip list for matches sure do not back that up for being the most accurate across the board. The best is what works best in your gun. F210s in most LR BR guns, RWS and even the Russian primers are the most common on the equip lists. As we test everything, we use the most accurate and I normally use F210 and RWS. BH [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Using chronograph data to determine the best load????
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