Creating .270 win brass

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I was curious about forming .270 win brass from .30-06 brass. I understand the FORMED .270 brass will be a few thousandths of an inch shorter that of a real head stamped .270 Win made by a factory. Is there a hazard that comes with this loss of length or is it negligible?

I'm buying a new .270 for hunting but i have tons of .30-06 brass laying around from my m1 garand. Thank you for your help in this issue.
 
New Rifle = New Brass

The 270 is a 65,000 psi cartridge. I dont think i would do it. Short trim length may cause extra barrel wear. But on a hunting rifle, probably not a problem. Sizing down may increase brass neck wall thickness. Loaded round neck diameter is .310" maximum. If you can afford a new rifle, buy new brass for it.
 
The 270 is based on the 30-03 case, not the 30-06 so the neck is longer. There have been millions of rounds of 30-06 brass reformed to 270 in its long life with no ill effects. Probably will never have to trim.
 
How much stretching from being fired in the Garand? Could that be a problem?
should have clarified. My M1 Garand is a Singer Garand that has only had a couple en bloc clips through it in it's existence. I bought 500rnds of brass but when I found out the type of garand I decided to only put a couple rounds through it for testing purposes.
 
I have a bunch of .270 win brass bagged up (around 100) that I may never get around to loading. PM me an address, they are yours. No sense in such foolishness in making one thing into another when they are common. After that find something you don't need and post it on the pay it forward thread....and with that will come plenty data including my personal loads. Just don't ever be known as 7 finger fred...http://www.thehighroad.org/showthread.php?t=698208&highlight=pay+it+forward
 
I have been using 06 brass for .270 win off and on for many years with no problems.

I just took a piece of once fired piece of F.C. 30-06 brass that measured 2.492" before resizing, and after running it through the .270 win. FL die it measured 2.513". And even though it is still short by .017" of trim too length, I assure you that isn't enough to create a problem.

GS
 
I understand the FORMED .270 brass will be a few thousandths of an inch shorter that of a real head stamped .270 Win made by a factory. Is there a hazard that comes with this loss of length or is it negligible?

Head stamps? Military 30/06 cases do not have a 30/06 Springfield headstamp. The difference in length is .041", it is possible to form 270 W cases from 280 Remington cases with a big advantage for those that can keep up with the length of the chamber from the shoulder of the chamber to the bolt face. The 280 Remington case has a .051" advantage over the 270 W. When off setting the long chamber a reloader can off set the length of the chamber with the additional .051".

The 280 Remington is my favorite case right behind 30/06 cases that have been fired in long trashy old chambers.

I'm buying a new .270 for hunting but i have tons of .30-06 brass laying around from my m1 garand. Thank you for your help in this issue.

From your Garand? That could be a source for cases fired in a long, trashy old chamber.

F. Guffey
 
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My M1 Garand is a Singer Garand that has only had a couple en bloc clips through it in it's existence.

Singer did not make M1 Garands. They did make some M1 Carbine receivers for Underwood during WWII. The only complete firearm Singer made in WWII was a 1911A1, which is the rarest 1911A1 produced in WWII.

During WWII, only Springfield Armory and Winchester made M1 Garands.
 
During WWII, only Springfield Armory and Winchester made M1 Garands.

At one time or the other I remember shooting International Harvesters and Harrington & Richards.

F. Guffey
 
At one time or the other I remember shooting International Harvesters and Harrington & Richards.

F. Guffey
This gets off topic but H&R as well as IHC manufactured M1 Garands were Post WWII manufactured M1 Garand rifles. So while H&R and IHC did manufacture M1 Garand rifles they were Korean era and later, well after WWII.

Ron
 
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