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Rifles, Reloading, Optics, Equipment
Reloading
Ballistic Calculator instead of Chronograph
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<blockquote data-quote="J E Custom" data-source="post: 523386" data-attributes="member: 2736"><p>For the realy big rifles, a blast shield will help. I set the front screen 12 to 16 Feet from the muzzle.</p><p></p><p>And on your velocity, remember a lot of the velocity/Data in loading manuals is calculated with</p><p>optimum numbers and very little actual real world testing.</p><p></p><p>Also each barrel may give different velocities from the test barrel used depending on length</p><p>and bore quality.</p><p></p><p>One way to check the velocity of a hand load is to compare it with a factory load that list the </p><p>velocity on the box, It will probably be slower in your rifle because it was tested under the</p><p>best conditions. I have only seen one or two brands of ammo that reached the listed velocity</p><p>(Just barely). but it does give you a bench mark to start with and with good velocities you can </p><p>get good BCs for your bullets, Then your drop charts will be very dependable.</p><p></p><p>For load development using the chronograph I can rule out a load with just two shots (If</p><p>the SDs are way apart there is no reason to continue testing that load because it will not</p><p>be suitable for long range.</p><p></p><p>As you can tell I am a big proponent of the Chronograph because it can give you lots of</p><p>information and save you lots of money, Plus if you have one with a printer you have a</p><p>permanent record of all of your loads.</p><p></p><p>So don't give up on the chronograph.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 523386, member: 2736"] For the realy big rifles, a blast shield will help. I set the front screen 12 to 16 Feet from the muzzle. And on your velocity, remember a lot of the velocity/Data in loading manuals is calculated with optimum numbers and very little actual real world testing. Also each barrel may give different velocities from the test barrel used depending on length and bore quality. One way to check the velocity of a hand load is to compare it with a factory load that list the velocity on the box, It will probably be slower in your rifle because it was tested under the best conditions. I have only seen one or two brands of ammo that reached the listed velocity (Just barely). but it does give you a bench mark to start with and with good velocities you can get good BCs for your bullets, Then your drop charts will be very dependable. For load development using the chronograph I can rule out a load with just two shots (If the SDs are way apart there is no reason to continue testing that load because it will not be suitable for long range. As you can tell I am a big proponent of the Chronograph because it can give you lots of information and save you lots of money, Plus if you have one with a printer you have a permanent record of all of your loads. So don't give up on the chronograph. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Ballistic Calculator instead of Chronograph
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