[Hoopie]

Can i neck down 30-06 cases to .280 and not have to neck turn? Will there be any other problems with case dimensions?

[cdrt]

I've necked down .30-06 cases to .280 and then fire-formed them to bring the shoulder back...they tend to crush a little in the process. Never had any problems doing it, but have stopped since I now have lots of regular .280 brass. It can get confusing when you have brass that is "modified" from what the headstamp reads.

You might have a problem if you try and neck down military brass since it's thicker. The stuff I did before was all commercial cases. Never had to neck turn any of it.

[First Shirt]

Back before the .280 Remington was the 7mm Express Remington, and you couldn't find brass in either persuasion, the .30-06 brass was necked up to .35 Whelen, then necked back to .284 to move the shoulder up. The shoulder was moved up to prevent getting .280 rounds into a .270 Win.

At least, that's the way it was explained to me.

JWB

[Shoney]

The 280 case (2.530) is slightly longer than the 30-06 (2.484), and the shoulder is slightly more forward to prevent It from being chambered in either the 30-06 or 270.

The necking up to .35 then down to .284 creates a partial shoulder on the case and alows it to chamber without head space problems for fire forming. The case will be a bit short for a while until several loadings stretch the case to length. At that point it will need to be trimmed.

[Shoney]

Ooops Sorry