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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Which short action magnum?
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<blockquote data-quote="Reloder28" data-source="post: 2727850" data-attributes="member: 6210"><p>I had a custom Borden done in 300 WSM. My first powder I tried with Norma brass, as my other commercial 300 WSM rifles love that brass. I found such extreme pressure with even the lowest powder charges that it literally locked the bolt shut. I could not open it at all. Frustrated, I packed up my junk and went home. I called Mr. Borden to discuss. He asked, "what brass are you using?" When I told him, Norma, he started laughing. He went on to inform me of the different ductility properties of market brass & that Norma was the softest of all. He asked if I got the bolt open yet & told me to get a hammer handle or a substantial piece of wood and literally beat the bolt open. He said he'd done it many times. He suggested I try a different brass mf'r & start with the highest charge & that the first two shots would tell me everything I would need to know. So, I loaded 5 R-P brass with 64gr VV 550, 155 Scenar's & fired the first two rounds of five. Those two went into the same hole & all of them printed 1/2 moa @ 3285 fps & ZERO pressure signs. Bolt lift was normal. That is my hunting load for that rifle now. And this all started with my first load development work with a brand new gun. It went from unusable to dialed in after 12 rounds fired.</p></blockquote><p></p>
[QUOTE="Reloder28, post: 2727850, member: 6210"] I had a custom Borden done in 300 WSM. My first powder I tried with Norma brass, as my other commercial 300 WSM rifles love that brass. I found such extreme pressure with even the lowest powder charges that it literally locked the bolt shut. I could not open it at all. Frustrated, I packed up my junk and went home. I called Mr. Borden to discuss. He asked, "what brass are you using?" When I told him, Norma, he started laughing. He went on to inform me of the different ductility properties of market brass & that Norma was the softest of all. He asked if I got the bolt open yet & told me to get a hammer handle or a substantial piece of wood and literally beat the bolt open. He said he'd done it many times. He suggested I try a different brass mf'r & start with the highest charge & that the first two shots would tell me everything I would need to know. So, I loaded 5 R-P brass with 64gr VV 550, 155 Scenar's & fired the first two rounds of five. Those two went into the same hole & all of them printed 1/2 moa @ 3285 fps & ZERO pressure signs. Bolt lift was normal. That is my hunting load for that rifle now. And this all started with my first load development work with a brand new gun. It went from unusable to dialed in after 12 rounds fired. [/QUOTE]
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Which short action magnum?
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