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Long Range Hunting & Shooting
6.5 creedmoor reloading
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<blockquote data-quote="Litehiker" data-source="post: 1680539" data-attributes="member: 54178"><p>Michael,</p><p>Yer Hells Canyon Long Range has a 1:7 twist (one rotation faster than the standard 1:8 for the 6.5 CM) because Browning designed it for Long Range, as its name and 26" barrel indicates.</p><p> </p><p>Therefore it is meant to use heavier 6.5 mm bullets from 140 grain up. They won't shoot quite as flat as say 120 or 130 grain bullets but they <em>will </em>stay supersonic longer and have more energy at longer distances.</p><p></p><p>Generally 4320 powder is the most temperature insensitive powder for 6.5 CM cartridges so I would start with it for more consistent velocities at all tolerable temperatures. i.e You likely won't be hunting in 100+ F. temperatures or -40 F. temps but all those temperatures between these extremes will be OK with that powder.</p><p>(Remember, colder temps = denser air and lower hits, hot air = thinner air density and higher hits, all else being equal such as humidity.)</p><p></p><p>Eric B.</p></blockquote><p></p>
[QUOTE="Litehiker, post: 1680539, member: 54178"] Michael, Yer Hells Canyon Long Range has a 1:7 twist (one rotation faster than the standard 1:8 for the 6.5 CM) because Browning designed it for Long Range, as its name and 26" barrel indicates. Therefore it is meant to use heavier 6.5 mm bullets from 140 grain up. They won't shoot quite as flat as say 120 or 130 grain bullets but they [I]will [/I]stay supersonic longer and have more energy at longer distances. Generally 4320 powder is the most temperature insensitive powder for 6.5 CM cartridges so I would start with it for more consistent velocities at all tolerable temperatures. i.e You likely won't be hunting in 100+ F. temperatures or -40 F. temps but all those temperatures between these extremes will be OK with that powder. (Remember, colder temps = denser air and lower hits, hot air = thinner air density and higher hits, all else being equal such as humidity.) Eric B. [/QUOTE]
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