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Rifles, Reloading, Optics, Equipment
Reloading
Velocity Spreads?
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<blockquote data-quote="J E Custom" data-source="post: 338567" data-attributes="member: 2736"><p>If you have a good chronograph look for single digit SDs and if you can't get that low</p><p>up to 15 SDs will work but the higher you go the shorter the range for acceptable</p><p>accuracy.</p><p></p><p>At shorter ranges the low SDs are not as important but at 1000 + yards it is very important.</p><p></p><p>To get an idea look on a good ballistic chart that goes to 1000 + yards and use 2 velocities</p><p>25 ft/sec apart and you will see the difference in drop and wind effect that 25 ft/sec has</p><p>and cut it in half and that is the biggest number you would want.</p><p></p><p>My best performing 1000 yard + rifles have had a SD of 3 or 4. but this does not come easy</p><p>careful loading is a must.</p><p></p><p>This is just my opinion and some may dissagree</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 338567, member: 2736"] If you have a good chronograph look for single digit SDs and if you can't get that low up to 15 SDs will work but the higher you go the shorter the range for acceptable accuracy. At shorter ranges the low SDs are not as important but at 1000 + yards it is very important. To get an idea look on a good ballistic chart that goes to 1000 + yards and use 2 velocities 25 ft/sec apart and you will see the difference in drop and wind effect that 25 ft/sec has and cut it in half and that is the biggest number you would want. My best performing 1000 yard + rifles have had a SD of 3 or 4. but this does not come easy careful loading is a must. This is just my opinion and some may dissagree J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Velocity Spreads?
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