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Rifles, Reloading, Optics, Equipment
Reloading
Should I be worried?
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<blockquote data-quote="Flintlock" data-source="post: 1934077" data-attributes="member: 6546"><p>I would say it was bumping the shoulder back to far. Not a belted round but I was working on loads for my</p><p>309JDJ, a 444 Marlin case, neck down to 30 cal. I loaded about twenty rounds and all shot great. Got my velocities and scope set. I went back to the bench, decided to load some 308 rounds for the next weekend so I changed shell holder and dies and got that done. I then decided to load more 309JDJ the next day. I took the shell holder out and dies, and replaced with the 444 shell holder and 309JDJ dies from my bench. Loaded some and went to the range to shoot. I had two that separated about 1/8" from the rim. A few of the others after inspecting had very easy to see rings around the base of the brass where the other separated.HUM.</p><p>Went back to the bench and found I had put another 444 Marlin shell holder in the die, not the one I used the first time. I had two different brands and doing some measuring the one I installed was about 1/16th longer which bumped my shoulder back too far and caused the space in my chamber for the brass to flow forward since it head spaced on the rim. I chunked that shell holder and haven't had any more problems. This was on a Single Shot Contender pistol.</p><p>In saying all of that, it only took 1/16" or less to cause this. I've seen this on a .264 Win Mag that a friend loads. He bumped the shoulder too much instead of neck sizing. He had a couple separate. Sometimes it will split the neck down to the should if the brass is real strong or new with all of the space at the shoulder.</p><p>You should be good on your rifle.</p><p>Good luck in your reloading. Remember, when working up loads, only change one thing at a time and try that and then go to the next change if needed. That is the only way to truly see what works.</p><p>Mike</p></blockquote><p></p>
[QUOTE="Flintlock, post: 1934077, member: 6546"] I would say it was bumping the shoulder back to far. Not a belted round but I was working on loads for my 309JDJ, a 444 Marlin case, neck down to 30 cal. I loaded about twenty rounds and all shot great. Got my velocities and scope set. I went back to the bench, decided to load some 308 rounds for the next weekend so I changed shell holder and dies and got that done. I then decided to load more 309JDJ the next day. I took the shell holder out and dies, and replaced with the 444 shell holder and 309JDJ dies from my bench. Loaded some and went to the range to shoot. I had two that separated about 1/8" from the rim. A few of the others after inspecting had very easy to see rings around the base of the brass where the other separated.HUM. Went back to the bench and found I had put another 444 Marlin shell holder in the die, not the one I used the first time. I had two different brands and doing some measuring the one I installed was about 1/16th longer which bumped my shoulder back too far and caused the space in my chamber for the brass to flow forward since it head spaced on the rim. I chunked that shell holder and haven't had any more problems. This was on a Single Shot Contender pistol. In saying all of that, it only took 1/16" or less to cause this. I've seen this on a .264 Win Mag that a friend loads. He bumped the shoulder too much instead of neck sizing. He had a couple separate. Sometimes it will split the neck down to the should if the brass is real strong or new with all of the space at the shoulder. You should be good on your rifle. Good luck in your reloading. Remember, when working up loads, only change one thing at a time and try that and then go to the next change if needed. That is the only way to truly see what works. Mike [/QUOTE]
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Reloading
Should I be worried?
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