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Rifles, Reloading, Optics, Equipment
Reloading
Help Requested: Not pushing shoulder back.
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<blockquote data-quote="MagnumManiac" data-source="post: 983014" data-attributes="member: 10755"><p>Firstly, use the correct shell holder, RCBS #4 is for the 300WinMag.</p><p>Secondly, it sounds like you have a minimum chamber if your mic is reading +.001" of your fired brass. I would suggest you go and buy a RCBS 300WM Neck die and use that to size your necks. You may find it takes several firings before cases get tight to chamber.</p><p></p><p>If you want to use your FL die, get yourself a set of feeler guages and place a .005" shim/guage under the case and on top of the shell holder, size a case and check it in your mic, you may need to go as much as .010", I go up in .001" increments until the shoulder is moved the desired amount.</p><p>Or get .010" machined off the TOP of a shell holder and adjust your die as you described until you get .002" bump on your shoulders. I do this with a new shell holder, they're cheap, and I keep it with those dies for the life of that rifle.</p><p>I've run into this a few times myself, my custom 375 Weatherby is right on minimum dimension and my Redding dies WILL NOT bump the shoulder at all, had to turn .010" off a shell holder to get the shoulders bumped for easy chambering.</p><p>This isn't common, but it's not that rare to see it in a few factory rifles too.</p><p></p><p>Please let me know how you go.</p><p></p><p>Cheers.</p><p>gun)</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 983014, member: 10755"] Firstly, use the correct shell holder, RCBS #4 is for the 300WinMag. Secondly, it sounds like you have a minimum chamber if your mic is reading +.001" of your fired brass. I would suggest you go and buy a RCBS 300WM Neck die and use that to size your necks. You may find it takes several firings before cases get tight to chamber. If you want to use your FL die, get yourself a set of feeler guages and place a .005" shim/guage under the case and on top of the shell holder, size a case and check it in your mic, you may need to go as much as .010", I go up in .001" increments until the shoulder is moved the desired amount. Or get .010" machined off the TOP of a shell holder and adjust your die as you described until you get .002" bump on your shoulders. I do this with a new shell holder, they're cheap, and I keep it with those dies for the life of that rifle. I've run into this a few times myself, my custom 375 Weatherby is right on minimum dimension and my Redding dies WILL NOT bump the shoulder at all, had to turn .010" off a shell holder to get the shoulders bumped for easy chambering. This isn't common, but it's not that rare to see it in a few factory rifles too. Please let me know how you go. Cheers. gun) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Help Requested: Not pushing shoulder back.
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