Gentlemen and Ladies,

I bought a used USRAC Winchester model 70 in 416 rem. Took it out today and fired 5 rounds through it. I was using 400gr Hornady interlocks in Hornady 416 brass. All the cases that were ejected had a noticeable dent in the case mouth.

I lost 1 piece of brass when we resized it when we got home; the case neck collapsed.

Is this normal? I heard the necks on 416 brass were thin...

Here's a pic of the dented brass:
[IMG]http://i85.photobucket.com/albums/k46/pevtsovy/IMAG0469.jpg">

Did you eject the spent rounds slowly or briskly?

If you do this with a new, unloaded case, does the same thing happen?

George

Briskly, it does not happen with an unloaded case.

Many previous such occurrences discussed here.
Case is ejecting so well that that it hits the inside of the front receiver ring or spins in the air and strikes the rear receiver ring of the rifle on the outside.
Not a bad thing for function, could be toned down by reshaping and slightly shortening the ejector, carefully,
or creating a scallop on the front ejection port like seen on standard actions opened up for longer cartridges.
I would not bother.
Hell for certain ejection in battle, just go slow when the situation is leisurely.

RIP,

Thanks for the explanation. I don't want to mess with the ejection, I want those cases gone when I work the bolt!!

Welcome,
I edited above.
The case is ejected so vigorously well, it is hitting some part of the action.
Slow-mo video of a fast ejection would tell.
We have seen people start to see brass tracings on the rear receiver ring on the outside where the case was hitting, from spinning and pivoting backward in air.
But could be inside the front receiver ring edge instead.

Is this a push feed with a plunger ejector?
If so the case is being flipped around and is striking the reciver when the case clears the receiver.

You can weaken the plunger spring or just open the bolt slow and catch the case when you are on the bench. For field shooting it is not of much concern.

pevtsovy,this is caused by the cases striking the ground after ejection.Try ejecting one slowly with your hand and not let it fall to the ground.If cases were contacting anything before ejecting they would probably jam the rifle.If the cases fall on a soft ground like snow or grass-bush there necks might not dent.

???
I have a Winch 70 Safari Express .416 RM.
Hornady 400g DGS and Norma Soft ... no pb ...
If you're interested I can try to post pics

Thanks for all the posts guys, I'm just going to have to be careful when resizing the brass.

My Model 70 does exactly the same with brisk ejection. A CRF action doesn't initiate ejection until the bolt is very far to the rear, so it is caused by the case flipping 180 degrees and the case mouth hitting the outside of the action as it is ejected. I have never lost a case by resizing but use dry lube on the inside of the neck on my 416’s.