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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with BC calculation
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<blockquote data-quote="Matt27" data-source="post: 35221" data-attributes="member: 781"><p>Jerry</p><p></p><p>I have a 260 with 24" sporter barrel and had to go get some of these and try them. I hopefully will be able to get to the range tomorrow. I can get all the way out to 1000. I won't be able to get 2900fps but should be able to get up to 2800.</p><p></p><p>I worked up a load with the 139 scenar last week and shot it from 300 all the way out to 1000. The accuracy speed for this bullet in my gun is around 2750fps. I am at an altitude of 4250 and it was 85degrees out and only took me 27min to get to 1000 and had a 10-15mph breeze from 12:30.</p><p></p><p>Hopefully will be able to report back tomorrow with the 140's. They are definatly longer than the 139's and a shorter bearing surface also(at least to my eye).</p></blockquote><p></p>
[QUOTE="Matt27, post: 35221, member: 781"] Jerry I have a 260 with 24" sporter barrel and had to go get some of these and try them. I hopefully will be able to get to the range tomorrow. I can get all the way out to 1000. I won't be able to get 2900fps but should be able to get up to 2800. I worked up a load with the 139 scenar last week and shot it from 300 all the way out to 1000. The accuracy speed for this bullet in my gun is around 2750fps. I am at an altitude of 4250 and it was 85degrees out and only took me 27min to get to 1000 and had a 10-15mph breeze from 12:30. Hopefully will be able to report back tomorrow with the 140's. They are definatly longer than the 139's and a shorter bearing surface also(at least to my eye). [/QUOTE]
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Help with BC calculation
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