Flared Case Mouth Rebound?

Although the nickel cases were still splitting the brass cases seemed to stop.
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Forget firing: I have long chambers, manufacturers do not sell long cases for shooters with long chambers so I form cases to fit. One example is my 30/06 chamber that is .016" longer than a minimum length/full length sized case. I solve that problem with 280 Remington cases, the 280 Remington case length from the shoulder to the case head is .051" longer than the length of a 30/06 case length from the shoulder to the case head.

And I ask: How can a reloader miss? I go for the magic .002" clearance by shortening the 280 case .014". Problem the neck shortens when I increase the inside diameter of the neck; another problem, if I use nickeled cases I loose 50% of the 280 cases because the necks split if they are nickel. And then there is the; SO? I do not use nickel cases when I neck cases up and or down and I do not use cases that have been fired over and over and over etc.

If I could figure a way to expand the case neck slowly when fired the case necks would not split as often, I do not wonder if there is a difference between using fast powder and slow powder:rolleyes:

F. Guffey
 
Flair Rebound?
I think they do.

It's something I've pondered and even thought about creating a post (like this one) asking if others have noticed.

Here's my story (try to be brief, as this is not my post):

I flair generously. And I prep my brass for reloading first; and then stash them in my Folgers coffee cans until I need to load them. Sometimes, I go to use brass that I reconditioned months or even years before. It seems whenever I get ahold of older ones especially, there is barely enough flair to get the bullet started - even though I know I gave them a generous flair.

I know it's unscientific. But it seems that whenever I grab brass that was reconditioned a long time ago, that they have less flair - even though I haven't touched my flair die(s) settings in I don't know how long.
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I share this thought and have experienced the same. I load everything on a SS and prep my brass in large quantities and then load ammo as I have time and/or need it. I like to work my brass as little as possible so I keep flare to a minimum. Like Nick, brass that was flared a month or so is much more difficult to start the exact same bullet than the exact same brass that was flared a minute or two ago. This is why I now save flaring/belling for right before I charge and seat.
 
And I wonder? Do I need to make a gage? We are just throwing this stuff out in lofty terms and then? I remember; too much flare, I have flared case mouths to the point the case would not allow the ram to push the case into the seating die. So? If I put too much flare on the neck and I allow the cases a few months of shelf time the cases should jump back, snap back or spring back.

And then there was that time I formed 200 7mm57 cases from 30/06 cases. Normally I do not load ahead but I loaded theses cases for a few shooters in Alabama. When the cases were formed and loaded and then fired there was no jump back, snap back or spring back but the Alabama shooters did not go to the range and fire all of the cases, they waited and waited etc. until the necks split. The necks split on over half of the cases while just setting there in a box in a drawer. Anyhow, I ran 120 rounds through the rifle before it left here, I was impressed with the accuracy. I wanted them to shoot all of the ammo because I wanted to know what the rifle liked. When I asked them what the rifle liked they said' "EVERYTHING!".

F. Guffey
 
I recently had that happen to me but in 243 and I don't flare rifle case mouth. First one I tried to seat a bullet in, held the bullet over the mouth and let go while running the ram up and the shell that came out was really seated deep! Took a bullet and tested the other's and most were the same way. BTW, with that first one, I could pull the bullet with my finger's! Switched die set's and the problem went awy. It was something I did. I know that because I used that die again a few days later and it worked fine. I'm clueless!
 
I just made up about 20 .38spl rounds. Random cases from my "stash", Bayou Bullets Hi-Tek coated 124gr round nose bullets. Using my RCBS RockChucker and RCBS dies
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. Hmmm. Too much thread drift away from the OP's question? 7x57, 280, 243, 30-06 :confused:
 
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