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Hunting
Long Range Hunting & Shooting
6.5 PRC Powder Charge/Velocity Ladder Test. No Flat Spot
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<blockquote data-quote="Opa-lopa" data-source="post: 2947871" data-attributes="member: 108809"><p>Velocity “flat spots” are a figment of small sample size; ignore them. Plot the data, compare w/ velocity vs charge weight from load manual. Is your data above or below the manual? If you’re below, you probably either have a shorter barrel or worn throat. If you’re above, it’s either due to a longer barrel than the manual or your primer-powder interaction is driving the bus. Velocity doesn’t come free, approach max load with caution. Load what shoots smallest groups consistently.</p></blockquote><p></p>
[QUOTE="Opa-lopa, post: 2947871, member: 108809"] Velocity “flat spots” are a figment of small sample size; ignore them. Plot the data, compare w/ velocity vs charge weight from load manual. Is your data above or below the manual? If you’re below, you probably either have a shorter barrel or worn throat. If you’re above, it’s either due to a longer barrel than the manual or your primer-powder interaction is driving the bus. Velocity doesn’t come free, approach max load with caution. Load what shoots smallest groups consistently. [/QUOTE]
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6.5 PRC Powder Charge/Velocity Ladder Test. No Flat Spot
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