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Rifles, Reloading, Optics, Equipment
Reloading
30-378 caselife?
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<blockquote data-quote="HoytemanPA" data-source="post: 67732" data-attributes="member: 286"><p>Hi,</p><p>I did about the same as you 4 firings neck sizing only, full lengthed the fifth with a standard rcbs die. Back to neck sizing now. Starting to lose some from primer pockets. As I'm priming cases the very easy to prime brass gets a magic marker across the head, meaning.... Last Fire. </p><p></p><p>I'm about to take one case, back the load down a hair, reload, full length resizing it, checking for thinning ahead of the web, repeat until I see something I don't like. I just lost a whole pile of 5 times fired/ last 3 times FL sized match 300 Wby brass due to case head sep/thin. I thought full length sizing every time would be more consistent, well maybe if I set the dang thing up right.</p><p></p><p>That said my 30-378 cases have lived longer than my 300 Wby and I'm a bit harder on them too. But it is my own fault and not the brasses.</p><p></p><p>I couldn't see it by eye after the 2nd FLS but I have since measured some and they were 5-7 thousandths thinner just in front of the web. Now with a noticeable shiny line they are 15 thou thinner just in front of the web.</p><p></p><p>I also switched to a slightly faster powder for the last 2 firings....from RL25 to RL22. Similar vel, no marks. You think that could that be part of the problem?</p></blockquote><p></p>
[QUOTE="HoytemanPA, post: 67732, member: 286"] Hi, I did about the same as you 4 firings neck sizing only, full lengthed the fifth with a standard rcbs die. Back to neck sizing now. Starting to lose some from primer pockets. As I'm priming cases the very easy to prime brass gets a magic marker across the head, meaning.... Last Fire. I'm about to take one case, back the load down a hair, reload, full length resizing it, checking for thinning ahead of the web, repeat until I see something I don't like. I just lost a whole pile of 5 times fired/ last 3 times FL sized match 300 Wby brass due to case head sep/thin. I thought full length sizing every time would be more consistent, well maybe if I set the dang thing up right. That said my 30-378 cases have lived longer than my 300 Wby and I'm a bit harder on them too. But it is my own fault and not the brasses. I couldn't see it by eye after the 2nd FLS but I have since measured some and they were 5-7 thousandths thinner just in front of the web. Now with a noticeable shiny line they are 15 thou thinner just in front of the web. I also switched to a slightly faster powder for the last 2 firings....from RL25 to RL22. Similar vel, no marks. You think that could that be part of the problem? [/QUOTE]
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30-378 caselife?
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