neck resizing question

[Dogleg]

That would be interesting! Certainly not something I have encountered in my limited experience. Then, I tend to push toward the fastest, most accurate, safe load. I just can't find any interest in going the other way!

Where you will see that is on light loads. The cast bullet guys will know exactly what I'm talking about. The primer pushes the case forward and shortens it but the cartridge doesn't develop enough pressure to push/stretch it back to the bolt-face leaving the primer sticking out. The same thing happens when full powered loads are fired, but the pressure takes over, stretches the case back, reseats the primer and hides the evidence.

Something similar but opposite happens when a case is full length sized. The case body first gets longer when the sides are pushed in, then shorter when the shoulder is pushed back. In the meantime the brass has to go somewhere.

I have more interest in going fast than going slow; but sometimes want to go cheap.

 

[Winchester-1897]

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[Eagleye]

I have never had any issues with re-chambering fired brass in the rifle it was used in.

However, it is my habit to FL size all hunting ammo, so it is sure to chamber easily, even if there may be slight contamination of the round.

Ammo I load for match purposes is usually neck sized only. [6mmBR, for example] If it starts to get hard to chamber, I will touch it with a body die.

I would be a bit concerned, however, with any case using a full power load that, once fired, would not accept an unfired bullet freely in the neck.

I have just such a 260 Remington, but it has been purposely cut that way, is so marked on the barrel, and requires that any brass used in it be neck turned to allow release of the bullet properly.

Regards, Dave.

 

[labrador76]

Where you will see that is on light loads. The cast bullet guys will know exactly what I'm talking about. The primer pushes the case forward and shortens it but the cartridge doesn't develop enough pressure to push/stretch it back to the bolt-face leaving the primer sticking out. The same thing happens when full powered loads are fired, but the pressure takes over, stretches the case back, reseats the primer and hides the evidence.

Well there, I have learned at least two things today.

I just fired the first loads out of my freshly reamed .30-30 WIN AI the other day, and they were about middle of the road on the load charts for the standard cartridge. After shooting I found the primers were all puffy and round like a muffin top, and the lighter loaded of the bunch, (by 1gr.) had the primers sticking out a little. I guess this is why?! I understood that the nice plump primers were due to lighter loads than I am accustomed to shooting, but I had no idea why some of them were sticking our a little. This is now my best guess. Thanks for the info.

And sorry for hijacking the thread!

 

[pomelum]

No one going to challenge this complete myth?

every reloading books ive read said it can cause dangerous pressure spikes.
am not an "experts" but am sure LEE is.

 

[ALMAR]

I have never had any issues with re-chambering fired brass in the rifle it was used in.

However, it is my habit to FL size all hunting ammo, so it is sure to chamber easily, even if there may be slight contamination of the round.

Ammo I load for match purposes is usually neck sized only. [6mmBR, for example] If it starts to get hard to chamber, I will touch it with a body die.

I would be a bit concerned, however, with any case using a full power load that, once fired, would not accept an unfired bullet freely in the neck.

I have just such a 260 Remington, but it has been purposely cut that way, is so marked on the barrel, and requires that any brass used in it be neck turned to allow release of the bullet properly.

Regards, Dave.

I checked some more and the lapua brass does not accept the speer jacketed 180's but the speers float easily in and out the rem. core lokt brass. I used cast 311299's in the lapua. You know I resize the cast 311299's and maybe that's why I got such horrible groups with them. Lead bullets, pushing close to 2000 fps with not enough material, 1:10 twist...I get the lead very hard with controlled quenching but still lead I lead, not copper. I never slugged the barrel...anyhow I will resize the neck to ensure even pressure but not FL. I doubt i'll be using the casts in this rifle anymore anyways. Thanks everyone.