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Rifles, Reloading, Optics, Equipment
Reloading
Adjusting Muzzle Velocity to Correct Ballistics Chart
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<blockquote data-quote="pwrdbycotn" data-source="post: 1135918" data-attributes="member: 29096"><p>I was shooting my 300RUM today and testing a new load. I was shooting 93gr Retumbo, using 210 Bergers, and getting a MV of 3123fps using a Magnetospeed V2. I shot at 100, 400 and 840 yards. At 400, the Shooter app and G7BR2 were calling for 5.2 moa up. It actually only took 4.125 (1/8 moa turrets). At 840, they were calling for 17 up and it actually only took 15.375. In order to get my charts to show the correct drops, I have to increase the MV to 3275fps. Is it normal to have to increase velocity that much to make the charts match real-world data?</p></blockquote><p></p>
[QUOTE="pwrdbycotn, post: 1135918, member: 29096"] I was shooting my 300RUM today and testing a new load. I was shooting 93gr Retumbo, using 210 Bergers, and getting a MV of 3123fps using a Magnetospeed V2. I shot at 100, 400 and 840 yards. At 400, the Shooter app and G7BR2 were calling for 5.2 moa up. It actually only took 4.125 (1/8 moa turrets). At 840, they were calling for 17 up and it actually only took 15.375. In order to get my charts to show the correct drops, I have to increase the MV to 3275fps. Is it normal to have to increase velocity that much to make the charts match real-world data? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Adjusting Muzzle Velocity to Correct Ballistics Chart
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