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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
75gr V-max 4056 fps for Varminting
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<blockquote data-quote="WildRose" data-source="post: 1243841" data-attributes="member: 30902"><p>Just for grins I ran it for you on Hornady's ballistic calculator. At 4000fps it shows a drop of 14.6" at 400yds using a 100yds zero.</p><p></p><p>At 300yds I get a drop of 5.8"</p><p></p><p>The maximum velocity for the calculator is 4600fps which shows a drop of 9.8" at 400yds and 3.6" at 300.</p><p></p><p>Your chrony may not be too far off and if that's the case I'd back off a grain or two or try a different powder because your barrel life is going to be extremely short.</p><p></p><p>I can tell you from personal experience that running anything at over 4000fps makes for lots of fun for a few hundred shots and after that you're going down hill rapidly due to throat erosion.</p><p></p><p>You can cheat that a bit by seating bullets farther out but not for long especially since you're shooting a pretty short bullet already.</p><p></p><p><a href="http://www.hornady.com/ballistics-resource/ballistics-calculator" target="_blank">http://www.hornady.com/ballistics-resource/ballistics-calculator</a></p></blockquote><p></p>
[QUOTE="WildRose, post: 1243841, member: 30902"] Just for grins I ran it for you on Hornady's ballistic calculator. At 4000fps it shows a drop of 14.6" at 400yds using a 100yds zero. At 300yds I get a drop of 5.8" The maximum velocity for the calculator is 4600fps which shows a drop of 9.8" at 400yds and 3.6" at 300. Your chrony may not be too far off and if that's the case I'd back off a grain or two or try a different powder because your barrel life is going to be extremely short. I can tell you from personal experience that running anything at over 4000fps makes for lots of fun for a few hundred shots and after that you're going down hill rapidly due to throat erosion. You can cheat that a bit by seating bullets farther out but not for long especially since you're shooting a pretty short bullet already. [url]http://www.hornady.com/ballistics-resource/ballistics-calculator[/url] [/QUOTE]
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75gr V-max 4056 fps for Varminting
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