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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Frustrated with Savage Lapua 338......
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<blockquote data-quote="Lefty7mmstw" data-source="post: 701041" data-attributes="member: 48043"><p>I've actually seen speeds come up some on a couple of over bore rifles as they aged, but that's another story. </p><p>It sounds as though the OP may have damaged your brass with warm loads on the first firing or two and now they have larger than normal bases and there isn't enough rebound when fired. I've seen it in both the 375h@h and 7mm stw when top loads are used with certain powders, I won't use aa 8700 or similar in my 7stw anymore as I've had to throw away a couple of hundred brass using book loads. Many of the larger brass will still hold a primer when mildly pressure damaged, but will feed/eject poorly and will mimic high pressure loads even when mild.</p><p>Cycle all your empty's through the rifle before loading and notice any scratching/ resistance near the web of the case(use a sharpie if you have a question as to whether the scratches are new). If there's anything over nothing, I'd minimum FL all of my brass and try it again. If you still have resistence, it's time for new brass.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 701041, member: 48043"] I've actually seen speeds come up some on a couple of over bore rifles as they aged, but that's another story. It sounds as though the OP may have damaged your brass with warm loads on the first firing or two and now they have larger than normal bases and there isn't enough rebound when fired. I've seen it in both the 375h@h and 7mm stw when top loads are used with certain powders, I won't use aa 8700 or similar in my 7stw anymore as I've had to throw away a couple of hundred brass using book loads. Many of the larger brass will still hold a primer when mildly pressure damaged, but will feed/eject poorly and will mimic high pressure loads even when mild. Cycle all your empty's through the rifle before loading and notice any scratching/ resistance near the web of the case(use a sharpie if you have a question as to whether the scratches are new). If there's anything over nothing, I'd minimum FL all of my brass and try it again. If you still have resistence, it's time for new brass. [/QUOTE]
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Frustrated with Savage Lapua 338......
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