• Help Support TNDeer:

Crushing cases

RidgeRunner13

RidgeRunner13

Well-Known Member
Joined
Jul 16, 2013
Messages
638
Location
Claxton, TN
Hey all, got a question. Just started doing brass prep on a 7mm Rem Mag. First 5-7 cases sized just fine. Then I started crushing the shoulder when full length sizing. Set die up per RCBS instructions. Never had this issue happen with any of my other calibers/dies. What am I missing?

D20C2429-1472-4896-92AD-3FEB42CD2702.jpeg
 
MUP said:
What lube are you using, and how much? Could be too much lube, or your vent hole may be clogged.
Click to expand...
The stuff that came with the RCBS kit a few years ago. I usually throw to small lines down and spread it with the cases. It crushed it with the deprimer pin removed also. So I don't think it's the vent hole.
 
RidgeRunner13 said:
Hey all, got a question. Just started doing brass prep on a 7mm Rem Mag. First 5-7 cases sized just fine. Then I started crushing the shoulder when full length sizing. Set die up per RCBS instructions. Never had this issue happen with any of my other calibers/dies. What am I missing?

View attachment 153486
Click to expand...

I did the same thing on my brass case only a little worse. I raised the die a little. It fixed it. The die had somehow gotten screwed down a little farther than what I had originally set it at.
 
Raising the die a hair can lead to a bulge just above the belt May want to take one of those cases and see if the empty will chamber and eject without undo pressure.

Your brass should have nothing foreign inside or outside beyond the lube. IIRC water does not compress, hence the brass has to give.
 
I appreciate the help. It was either the water or the lube. I'm leaning towards the water. I thoroughly dried the remaining cases and used a little less lube on them. They sized with no issues. That's what I get for getting in a hurry, I guess.

On a side note, are the compressed cases compromised?
 
RidgeRunner13 said:
I appreciate the help. It was either the water or the lube. I'm leaning towards the water. I thoroughly dried the remaining cases and used a little less lube on them. They sized with no issues. That's what I get for getting in a hurry, I guess.

On a side note, are the compressed cases compromised?
Click to expand...
Nope, just size again to make sure there aren't any bulges outside correct dimensions, load and fire. The firing will blow the dents back out.
 
That looks like to much lube as stated above but there could be something in your die. Take it apart and clean it. Those indentions look to similar.
 
RidgeRunner13 said:
I appreciate the help. It was either the water or the lube. I'm leaning towards the water. I thoroughly dried the remaining cases and used a little less lube on them. They sized with no issues. That's what I get for getting in a hurry, I guess.

On a side note, are the compressed cases compromised?
Click to expand...
Yes, I am not using anything creased.
 
Those lube dents will smooth out on the next firing, resize and make sure it will seat in your bore before you load them. Unless you have a mess of cases, I'd use them.
 

Latest posts

Back
Top