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Hunting
The Basics, Starting Out
Help with velocity numbers
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<blockquote data-quote="lancetkenyon" data-source="post: 3086135" data-attributes="member: 68875"><p>With 40.8gr H4350, unless you are running a 30" barrel, I highly doubt you are at 2960fps w. a 135. I bet the 2860 is correct.</p><p></p><p>I am running 42.4gr H4350 in a 26" 1:7.5" Brux and am at 2986fps w. 135s, BR4 and Lapua 6CM necked up to .257". My other 25CM is a 26" 1:7" Bartlein MOD400BB and running the 133s @ 2974fps w. 42.3gr H4350 and Fed GM210M in Alpha brass. This one took longer to speed up with the harder steel.</p><p></p><p>What was wind doing at 600 and 1000?</p><p>Did you verify your scope is tracking true?</p><p>Are you using G1 or G7 BC numbers?</p><p>You are dead on at 100? Even 1/4" high will make a difference.</p><p>Did you change temps and density altitude in your app?</p><p>All rifle and load inputs are correct?</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 3086135, member: 68875"] With 40.8gr H4350, unless you are running a 30" barrel, I highly doubt you are at 2960fps w. a 135. I bet the 2860 is correct. I am running 42.4gr H4350 in a 26" 1:7.5" Brux and am at 2986fps w. 135s, BR4 and Lapua 6CM necked up to .257". My other 25CM is a 26" 1:7" Bartlein MOD400BB and running the 133s @ 2974fps w. 42.3gr H4350 and Fed GM210M in Alpha brass. This one took longer to speed up with the harder steel. What was wind doing at 600 and 1000? Did you verify your scope is tracking true? Are you using G1 or G7 BC numbers? You are dead on at 100? Even 1/4" high will make a difference. Did you change temps and density altitude in your app? All rifle and load inputs are correct? [/QUOTE]
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Help with velocity numbers
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