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Reloading Forum >
HELP!!! - Reloading problem ....
HELP!!! - Reloading problem ....
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Marksman
1 post
Oct 30, 2004
10:35 PM
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I went to load some 6mmbr and got to the last step and started having problems. The bullets im using, 85gr HPBT Sierra, just slide right into the case. No problem right? The seater will grip the sides and hold the bullet right? WRONG!!! Ive got my redding standard 6mmbr dies screwed all the way down which should be practically crimping, but nothing, the bullet still slides in and out. Whats going on here? The brass is lapua, this will be the 4 loading, not neck turned. The brass cant be shot already can it? Im at a loss here. Thanks for anyone that can help.
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Marksman
2 posts
Oct 31, 2004
3:21 PM
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Heres what I come up with. A neck sized and expanded case measures outside the neck at .269". When I neck size only (take the expander out of the die) I get a case neck of .262". The expander measures .242". So, a loaded bullet after only neck sizing and no expander produces a neck size of .268" and .264" under where the bulley is seated. The dies Ive been using are Redding 6mmbr Rem Series B #80317. Below is a picture of a case that is only neck sized and then had a bullet seated. You can see how much smaller the neck is under the place where the bullet stops in the neck. What I ended up doing it screwing the expander all the way to the top of the die, the expander is set even with the place where the die neck sizes and this ended up working. It was when the expander was screwed all the way down to decap that when the brass came back over it, it opened up to much. I think I pretty well explained what happened. And I still shouldnt have to have the expander all the way to the top, but thats what works so Ill stick with it.
You can see a pic of the case with a bulge in the neck here:
Last Edited by Guest on Oct 31, 2004 8:31 PM
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