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Rifles, Reloading, Optics, Equipment
Reloading
300 Rum Load development help needed.
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<blockquote data-quote="BallisticsGuy" data-source="post: 1659821" data-attributes="member: 96226"><p>Yes, it is in fact quite modest and will be irrelevant to any of your stated intended purposes. I maintain and publish my own external ballistics app so I have some familiarity with the topic.</p><p></p><p>At 1000 yards the difference should be within a RCH of 2 inches. That's tiny upside a .5MOA group size which would be about 5.25" (in an ideal world) at 1000yrds. It's inside your existing error margin under the best of conditions.</p><p></p><p>SD's at or under 20fps across 10-20 round sample sizes is what I tell my long range (up to 1000yrds) students to try for. There's a reason I tell them that. Your measured SD's and ES's are statistically meaningless because you only shot 3 shots of each load. If you want to know how it's performing for velocity then shoot at least 10 shots and 20 would be better.</p></blockquote><p></p>
[QUOTE="BallisticsGuy, post: 1659821, member: 96226"] Yes, it is in fact quite modest and will be irrelevant to any of your stated intended purposes. I maintain and publish my own external ballistics app so I have some familiarity with the topic. At 1000 yards the difference should be within a RCH of 2 inches. That's tiny upside a .5MOA group size which would be about 5.25" (in an ideal world) at 1000yrds. It's inside your existing error margin under the best of conditions. SD's at or under 20fps across 10-20 round sample sizes is what I tell my long range (up to 1000yrds) students to try for. There's a reason I tell them that. Your measured SD's and ES's are statistically meaningless because you only shot 3 shots of each load. If you want to know how it's performing for velocity then shoot at least 10 shots and 20 would be better. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 Rum Load development help needed.
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