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Rifles, Reloading, Optics, Equipment
Reloading
LRM primers ok to use on 257 WTHBY
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<blockquote data-quote="Calvin45" data-source="post: 2304151" data-attributes="member: 109862"><p>That actually surprises me, that the load data is with standard primers. </p><p></p><p>Not that there's anything wrong with using standard primers, you won't have trouble using standard or magnum primers. Magnum primers give a little extra ignition insurance, especially in cold weather with compressed loads of slow burning powder. But in nearly all cases they're not needed but neither does it hurt anything to use them, and in the current supply climate just use what you have/can find and think about it no further!</p><p></p><p>Some think the magnum primers are REQUIRED…fun fact, federal developed the 215 primer in conjunction with weatherby's development of the mighty .378 wby in the 50s. Before this there was no such thing as magnum or standard primers, just primers. That means the .300 hh, 375 hh, the original weatherby cartridges, the 404 Jeffery (RUM parent case), the 416 rigby (338 lapua parent case) and even the colossal .505 Gibbs (cheytac parent case) were all somehow functioning flawless with ordinary primers!!!!! <img class="smilie smilie--emoji" loading="lazy" alt="😱" title="Face screaming in fear :scream:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f631.png" data-shortname=":scream:" /></p></blockquote><p></p>
[QUOTE="Calvin45, post: 2304151, member: 109862"] That actually surprises me, that the load data is with standard primers. Not that there’s anything wrong with using standard primers, you won’t have trouble using standard or magnum primers. Magnum primers give a little extra ignition insurance, especially in cold weather with compressed loads of slow burning powder. But in nearly all cases they’re not needed but neither does it hurt anything to use them, and in the current supply climate just use what you have/can find and think about it no further! Some think the magnum primers are REQUIRED…fun fact, federal developed the 215 primer in conjunction with weatherby’s development of the mighty .378 wby in the 50s. Before this there was no such thing as magnum or standard primers, just primers. That means the .300 hh, 375 hh, the original weatherby cartridges, the 404 Jeffery (RUM parent case), the 416 rigby (338 lapua parent case) and even the colossal .505 Gibbs (cheytac parent case) were all somehow functioning flawless with ordinary primers!!!!! 😱 [/QUOTE]
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Reloading
LRM primers ok to use on 257 WTHBY
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