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Hunting
Long Range Hunting & Shooting
6.5 Barrel Life
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<blockquote data-quote="BallisticsGuy" data-source="post: 2566549" data-attributes="member: 96226"><p>It's all about powder volume vs bore diameter. Something like a 6.5CM will have no trouble getting 1800 to 2000 rounds with its mild ~44gr charge weight. If you go up from there in terms of powder charge then you'll shorten barrel life. Any magnum 6.5 (things burning 70-80gr) will be lucky to get to 1300 before the throat is torched. Something like a 6.5-284 will be in between a magnum and a 6.5CM. If you look to something like a 6.5BR then barrel life shoots up to >3k rounds at match grade. Don't expect to get much of a return in terms of velocity from dumping extra powder into the equation. You can see heart stopping velocities with light bullets if flat shooting is a concern, otherwise a 6.5BR will kill medium size game surprisingly far away. If you want really flat shooting and barrel life up in the >2k rounds territory then 6XC is a really great option. It has the shoulder angle and long neck needed to keep the flame intersection point inside the case and out of the throat and it'll launch 115s at 2950fps without being loaded spicy. My experience with 6XC has been over 2k rounds before I see enough throat chasing to be a problem. Your action length may bring you some feeding issues so I would suggest rethinking the whole enterprise with a tighter specification and include the option of replacing the action with something a bit shorter.</p></blockquote><p></p>
[QUOTE="BallisticsGuy, post: 2566549, member: 96226"] It's all about powder volume vs bore diameter. Something like a 6.5CM will have no trouble getting 1800 to 2000 rounds with its mild ~44gr charge weight. If you go up from there in terms of powder charge then you'll shorten barrel life. Any magnum 6.5 (things burning 70-80gr) will be lucky to get to 1300 before the throat is torched. Something like a 6.5-284 will be in between a magnum and a 6.5CM. If you look to something like a 6.5BR then barrel life shoots up to >3k rounds at match grade. Don't expect to get much of a return in terms of velocity from dumping extra powder into the equation. You can see heart stopping velocities with light bullets if flat shooting is a concern, otherwise a 6.5BR will kill medium size game surprisingly far away. If you want really flat shooting and barrel life up in the >2k rounds territory then 6XC is a really great option. It has the shoulder angle and long neck needed to keep the flame intersection point inside the case and out of the throat and it'll launch 115s at 2950fps without being loaded spicy. My experience with 6XC has been over 2k rounds before I see enough throat chasing to be a problem. Your action length may bring you some feeding issues so I would suggest rethinking the whole enterprise with a tighter specification and include the option of replacing the action with something a bit shorter. [/QUOTE]
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