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Rifles, Reloading, Optics, Equipment
Reloading
Loaded up my first hammers this evening
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<blockquote data-quote="Calvin45" data-source="post: 2709264" data-attributes="member: 109862"><p>Well folks my first round of testing is a bit of a bust. </p><p></p><p>SUPERFORMANCE is not a suitable powder for this particular application.</p><p></p><p>I had worried it might be too slow…turns out it pressured out real hard long before we had a decent case fill. And my experience has without exception been that ball powders in magnum cases with poor load density are not ideal. This progressive burning double base ball in an overbore case if not a full case is a nightmare. Very very erratic, crazy huge es numbers. </p><p></p><p>At 80 grains we abruptly hit a hard spike. Pierced primers, super hard ejector print, had to whack the bolt open. At lower charges we were already seeing some heavy cratering. </p><p></p><p>Dang chronograph was acting up yesterday. I have no numbers! </p><p></p><p>Next up will be h4350 or h4831. They're both "faster" than superformance but a heck of a lot bulkier for good case fill and consistent performance. And nailing down the burn rate of superformance is **** near impossible. It doesn't always play the same. More than most powders. The hornady ballisticians even admit this outright…it has a very narrow range of application but where it works it really works. </p><p></p><p>It does not work for this it turns out. But that's how we learn things…we try!</p></blockquote><p></p>
[QUOTE="Calvin45, post: 2709264, member: 109862"] Well folks my first round of testing is a bit of a bust. SUPERFORMANCE is not a suitable powder for this particular application. I had worried it might be too slow…turns out it pressured out real hard long before we had a decent case fill. And my experience has without exception been that ball powders in magnum cases with poor load density are not ideal. This progressive burning double base ball in an overbore case if not a full case is a nightmare. Very very erratic, crazy huge es numbers. At 80 grains we abruptly hit a hard spike. Pierced primers, super hard ejector print, had to whack the bolt open. At lower charges we were already seeing some heavy cratering. Dang chronograph was acting up yesterday. I have no numbers! Next up will be h4350 or h4831. They’re both “faster” than superformance but a heck of a lot bulkier for good case fill and consistent performance. And nailing down the burn rate of superformance is **** near impossible. It doesn’t always play the same. More than most powders. The hornady ballisticians even admit this outright…it has a very narrow range of application but where it works it really works. It does not work for this it turns out. But that’s how we learn things…we try! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Loaded up my first hammers this evening
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