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#3174797 - 02/24/13 05:43 PM collapsed shoulders?
deerkiller300wsm
6 Point


Registered: 10/22/08
Posts: 553
Loc: maryville,tn

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What causes this in big fat cartridges with steep necks? Happened 3 times to me today on my 300 Wsm
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#3174833 - 02/24/13 06:12 PM Re: collapsed shoulders? [Re: deerkiller300wsm]
hunter0925
8 Point


Registered: 01/21/13
Posts: 1092
Loc: TN, Rhea,

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Were you seating the bullet when it happened? I have had it happen to a few of mine on my 300 and 325 and believe it is due to the case being stretched a little more than others. I backed the die out about 1/8 turn and then set my plunger a little deeper so that OAL is still correct. I was also able to resize the same casings and fix the shoulder and still reload them.
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We the unwanted, do the unthinkable, for the ungrateful.
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#3174844 - 02/24/13 06:16 PM Re: collapsed shoulders? [Re: hunter0925]
deerkiller300wsm
6 Point


Registered: 10/22/08
Posts: 553
Loc: maryville,tn

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Yes. Setting the bullet
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#3174853 - 02/24/13 06:22 PM Re: collapsed shoulders? [Re: deerkiller300wsm]
hunter0925
8 Point


Registered: 01/21/13
Posts: 1092
Loc: TN, Rhea,

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I would say that is your problem. I am no expert and someone may say that I am wrong but that is how I corrected my problem. My 7mm-08 was the worst but I blame that on the Hornady dies. You can try it and see if it works. If you are using a roll crimp it will effect the crimp but I soley use neck tension through sizing instead of a crimp on my rifles. Hope it helps man.
_________________________
We the unwanted, do the unthinkable, for the ungrateful.
In Each Other We Trust.

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#3174864 - 02/24/13 06:30 PM Re: collapsed shoulders? [Re: hunter0925]
deerkiller300wsm
6 Point


Registered: 10/22/08
Posts: 553
Loc: maryville,tn

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Thanks for the advice guys!
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#3174881 - 02/24/13 06:47 PM Re: collapsed shoulders? [Re: deerkiller300wsm]
Jcalder
6 Point


Registered: 09/18/12
Posts: 983
Loc: Tennesse

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Did you chamfer the case after trimming? Any time I trim or use brass for the first time from factory loads I chamfer it.
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#3174942 - 02/24/13 07:35 PM Re: collapsed shoulders? [Re: Jcalder]
deerkiller300wsm
6 Point


Registered: 10/22/08
Posts: 553
Loc: maryville,tn

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Yes I did
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#3174943 - 02/24/13 07:35 PM Re: collapsed shoulders? [Re: Jcalder]
KPH
10 Point


Registered: 08/06/05
Posts: 3494
Loc: Hendersonville Tenn

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I am thinking you have your die sat to low in the press. reread the instructions. I may be wrong but that will do it.
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when I die please don't let the wife sale my guns for what I told her I paid for them

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#3175040 - 02/24/13 08:37 PM Re: collapsed shoulders? [Re: KPH]
Jcalder
6 Point


Registered: 09/18/12
Posts: 983
Loc: Tennesse

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I would agree then with the die set too low.
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#3176134 - 02/25/13 07:09 PM Re: collapsed shoulders? [Re: Jcalder]
DaveB
10 Point


Registered: 09/03/08
Posts: 3667
Loc: Shelby County

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Yep, die is set wrong. If you didn't chamfer, you would see the case neck deformed first, particulary if using flat base bullets. Back the die completely out and re-read instructions and be sure to follow them exactly.

I still read my RCBS instructions every time. I wiped out about 50 300 Winmag cases by not setting the FL die correctly.

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