280 Brass From 30-06 Brass

Fire306

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Is anyone forming 280 Brass from 30-06 Brass? If so, could someone explain the steps they took to perform this?
Thanks in advance.
 
Sure
Clean & Lube 30-06 brass
Put in shell holder & run thru 280 die
Check brass length & trim if neccessary.
Check the neck for concentricity & turn the necks if neccessary (not likely)

OR
Use 270 brass
Lube & run thru 280 die

OR
just buy 280 brass
 
Sure
Clean & Lube 30-06 brass
Put in shell holder & run thru 280 die
Check brass length & trim if neccessary.
Check the neck for concentricity & turn the necks if neccessary (not likely)

OR
Use 270 brass
Lube & run thru 280 die

OR
just buy 280 brass

From what I have read, fire forming is a necessary due to the 280 case being longer. I want Lapua Brass, and they don't make 270 or 280.
 
If you use 30-06 brass you can create a small shoulder that should crush fit in your chamber to headspace on. To get this fit is trial and error but not difficult. The brass you produce will be shorter than regular 280 brass by more than 40 thousandths ( I just measured a 30-06 case I had done this to).
 
OR
Use 270 brass
Lube & run thru 280 die

No, that is not safe at all. You will end up with so much head-space the cartridge case may fail during fire-forming.

If you really want to use .270 brass you will need to size the neck to over 7mm and then form back down to form a false shoulder for the case to head-space on during the initial fire-forming.
 
Any time you case form from other "like" or "similar size" cases you run the risk of getting "donuts" inside the base of the neck. And these necks will need to be inside neck reamed.

ts260donutx380.jpg


30-06 to .270 donut

270winsmallmg4.jpg


Any time you form cases from larger longer cases you run the risk of having tapered tight fitting necks in your chamber which can cause high pressures. In these cases you will need to turn the outside of your necks to make them a uniform thickness.

6XC_CloseupNeckShoulder.jpg


Buy .280 or 7mm express cases and avoid the problems and headaches.

Or find cases that will transform without any problems, example thicker Remington 30-06 cases formed into 7.65 Belgian Mauser (Argentine) is a bad idea you end up with thick tapered necks. A better idea is forming these cases from 7mm or 8mm mauser cases.

Bottom line, get .280 brass and leave the headaches for someone else.

Remington Brass - 280 Remington
box of 20 $14.79
box of 100 $51.99

http://www.midwayusa.com/viewProduct/?productNumber=1601323081
 
Fire306

I received your PM and I will "try" and answer your question.

First, you are trying to doing something that I have never done before, that is to say you want to make .280 Remington cases from a "shorter" overall 30-06 cases. Not only is the overall length shorter on the 30-06 but the shoulder of the 30-06 case is shorter or behind the .280 by over .050. (excess head space)

NOTE: A new cartridge case at the shoulder is normally .002 shorter than minimum head space to ensure chambering. If you "completely full length resize your 30-06 cases to .280 Remington the shoulder of these cases will be over .050 shorter or over .050 from touching the shoulder of the chamber. This also means there is a possibility of misfires due to the distance to the rear of the case and light hits on the primer.

You might be able to just partially full length resize the 30-06 case which will create a "false" shoulder on the neck of the case which will hold the case against the bolt face. This method will create a false shoulder diameter of 0.024 larger than a normal .280 Remington case neck.

If that fails you will need to expand the the 30-06 neck up to 8mm (.321) and then partially full length resize the neck using the larger false shoulder to eliminate excess head space and possible thinning and stretching in the base web area of the case when fired.

Below, exaggerated false shoulder on 30-06 case, the case then "head spaces" on the false shoulder creating a crush fit that holds the cartridge against the bolt face.

falseshoulder.jpg


I can also tell you this.
Sometimes the word head space means nothing...........:eek:

image006e.jpg


762natoin3006.jpg
 
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