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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC Ballistics - drops don’t match ballistics chart
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<blockquote data-quote="vancewalker007" data-source="post: 1744436" data-attributes="member: 66917"><p>I've used a Magneto Speed for 5 years and I've never not had to tune the MV when checking drops at long ranges. The Magneto Speed will put you near the answer but the only way to get to the real number is to shoot long range and tune your DOPE to the results. The Mavnrto speed is much better than the older optical chronys but both are just a starting point. Then, on top of the error in the chronograph your scope will have a certain amount of variation, no matter how expensive it is. You nullify all these errors by physically shooting and recording everything including the environment. </p><p></p><p>A perfect example is this year's prep for sndcElk hunt. My son's 7LRM showed 3011fps at the muzzle. Shooting at 500 and 1000 with this data showed he was low. We had to tune down to 2970 fps in the G7 ballistic tool to be due on at 500 and 1000. 2 months later my son easily killed an elk at 1090yards. Some of the error was likely in the scope some in his shooting style and some in the Magneto Speed.</p></blockquote><p></p>
[QUOTE="vancewalker007, post: 1744436, member: 66917"] I've used a Magneto Speed for 5 years and I've never not had to tune the MV when checking drops at long ranges. The Magneto Speed will put you near the answer but the only way to get to the real number is to shoot long range and tune your DOPE to the results. The Mavnrto speed is much better than the older optical chronys but both are just a starting point. Then, on top of the error in the chronograph your scope will have a certain amount of variation, no matter how expensive it is. You nullify all these errors by physically shooting and recording everything including the environment. A perfect example is this year's prep for sndcElk hunt. My son's 7LRM showed 3011fps at the muzzle. Shooting at 500 and 1000 with this data showed he was low. We had to tune down to 2970 fps in the G7 ballistic tool to be due on at 500 and 1000. 2 months later my son easily killed an elk at 1090yards. Some of the error was likely in the scope some in his shooting style and some in the Magneto Speed. [/QUOTE]
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6.5 PRC Ballistics - drops don’t match ballistics chart
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