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Rifles, Reloading, Optics, Equipment
Reloading
My Lapua 300 prc brass experience......
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<blockquote data-quote="P7M13" data-source="post: 2249537" data-attributes="member: 94154"><p>[USER=13732]@highdrum[/USER], thanks for sharing your detail. I'll be reforming some Lap 300PRC into 7LRM some time this summer.</p><p>Those are impressive numbers.</p><p>Have you experienced any unburnt N570 at 23" barrel length? My experience with it, 338 Lapua @ 26" with N570 leaves unburnt kernels, almost exact same charge in 28" 338 Edge, none.</p><p>I'm also a little confused. Are you saying ejector marks in the case head, or extractor wipe marks on the rim?</p><p>If you could also share pics of your fired case heads? My experience has been once you start to get extractor wipe marks, you'll also see primer strike splash/ripple -- this before flattened primers.</p><p>Lastly, I've worried about loose primer cups with brass based on the force needed to decap the spent ones before cleaning. No rhyme or reason on that (edit - ones that I thought were starting to loosen would not continue - others would just give up the ghost and not retain primers on firing) Since then my attitude has changed - it can be easy in/ easy out every time for all I care, as long as it holds on firing. Ones that don't hold anymore are in the brass bucket.</p></blockquote><p></p>
[QUOTE="P7M13, post: 2249537, member: 94154"] [USER=13732]@highdrum[/USER], thanks for sharing your detail. I'll be reforming some Lap 300PRC into 7LRM some time this summer. Those are impressive numbers. Have you experienced any unburnt N570 at 23" barrel length? My experience with it, 338 Lapua @ 26" with N570 leaves unburnt kernels, almost exact same charge in 28" 338 Edge, none. I'm also a little confused. Are you saying ejector marks in the case head, or extractor wipe marks on the rim? If you could also share pics of your fired case heads? My experience has been once you start to get extractor wipe marks, you'll also see primer strike splash/ripple -- this before flattened primers. Lastly, I've worried about loose primer cups with brass based on the force needed to decap the spent ones before cleaning. No rhyme or reason on that (edit - ones that I thought were starting to loosen would not continue - others would just give up the ghost and not retain primers on firing) Since then my attitude has changed - it can be easy in/ easy out every time for all I care, as long as it holds on firing. Ones that don't hold anymore are in the brass bucket. [/QUOTE]
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Reloading
My Lapua 300 prc brass experience......
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