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Rifles, Reloading, Optics, Equipment
Reloading
6.5-300 weatherby help
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<blockquote data-quote="bellboy" data-source="post: 1274305" data-attributes="member: 13913"><p>So i went and shot my first batch of handloads for my mark v ultralight today.</p><p></p><p>my recipe was as follows:</p><p></p><p>6.5-300 weatherby resized brass</p><p>case trimmed to 2.820"</p><p>coal 3.717" (.070" off lands)</p><p>retumbo powder from 77-82gr in .5gr incriments</p><p>215 magnum rifle primers</p><p>hornady 143 gr eld-x</p><p></p><p>My dilemma is this, from 77-79.5 gr the velocities went down as powder increased. 77gr of retumbo gave me alarmingly low 1944fps and it decreased from there...79.5gr retumbo showed 1796fps. at first i thought maybe my chronograph was messed up so i shot a factory round through it and it displayed 3574fps and the box says 3531fps. i reached some minor pressure signs at 82 gr but was only pushing the bullet at 1907fps!! It just doesn't make sense, i found some quick load lists online using retumbo and the velocities were much higher and another source told me he was getting 3430fps from 82gr of retumbo out of the same gun. what am i doing wrong? this is my first weatherby and for those velocities to be that low maybe theres something I'm missing with weatherby reloading. </p><p></p><p>thank you</p></blockquote><p></p>
[QUOTE="bellboy, post: 1274305, member: 13913"] So i went and shot my first batch of handloads for my mark v ultralight today. my recipe was as follows: 6.5-300 weatherby resized brass case trimmed to 2.820" coal 3.717" (.070" off lands) retumbo powder from 77-82gr in .5gr incriments 215 magnum rifle primers hornady 143 gr eld-x My dilemma is this, from 77-79.5 gr the velocities went down as powder increased. 77gr of retumbo gave me alarmingly low 1944fps and it decreased from there...79.5gr retumbo showed 1796fps. at first i thought maybe my chronograph was messed up so i shot a factory round through it and it displayed 3574fps and the box says 3531fps. i reached some minor pressure signs at 82 gr but was only pushing the bullet at 1907fps!! It just doesn't make sense, i found some quick load lists online using retumbo and the velocities were much higher and another source told me he was getting 3430fps from 82gr of retumbo out of the same gun. what am i doing wrong? this is my first weatherby and for those velocities to be that low maybe theres something I'm missing with weatherby reloading. thank you [/QUOTE]
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6.5-300 weatherby help
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