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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6,5 Creedmoor, choice of barrel length?
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<blockquote data-quote="TRG65" data-source="post: 1890088" data-attributes="member: 103919"><p>Several years ago I did some work with VV550, but didn't save any of it, because of how well H4350 and RL16 do and they aren't as sensitive to temp fluctuations. But if I was restricted to norma and VV, my starting point would be VV550.</p><p></p><p>Also, unless google is leading me wrong 2700 joules is about 1992ftlbs. A Nosler 140 accubond at 2720fps will make 2000ftlbs using standard pressure and temp according to my Ballistic AE. I think you could get there with a 20" unless you get a slow barrel or see pressure quickly but you will add a bit with the can. Most 24" bolt guns are running 2800 give or take a bit with the 140-147 class bullets and handloads. Or if my ballistic program is correct a norma 156 oryx at 2660 starting velocity will make the 2000ftlbs</p></blockquote><p></p>
[QUOTE="TRG65, post: 1890088, member: 103919"] Several years ago I did some work with VV550, but didn't save any of it, because of how well H4350 and RL16 do and they aren't as sensitive to temp fluctuations. But if I was restricted to norma and VV, my starting point would be VV550. Also, unless google is leading me wrong 2700 joules is about 1992ftlbs. A Nosler 140 accubond at 2720fps will make 2000ftlbs using standard pressure and temp according to my Ballistic AE. I think you could get there with a 20" unless you get a slow barrel or see pressure quickly but you will add a bit with the can. Most 24" bolt guns are running 2800 give or take a bit with the 140-147 class bullets and handloads. Or if my ballistic program is correct a norma 156 oryx at 2660 starting velocity will make the 2000ftlbs [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6,5 Creedmoor, choice of barrel length?
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