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270 brass just a necked down 30-06?

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270 brass just a necked down 30-06?

Old 12-31-2007, 11:38 AM
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Nontypical Buck
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Default 270 brass just a necked down 30-06?

My cousin brought up the bright idea to crimp down a 30-06 casing to use for a 270 since he heard that a 270 is just a 30-06 necked down. Would this work or would it just be stupid?
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Old 12-31-2007, 12:08 PM
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Default RE: 270 brass just a necked down 30-06?

It'll work, you'll need to do your homework though, buy "special" dies and whatnot.

The only area I can think of you getting in trouble is if the brass at the neck gets too thick or too long...they your pressures would jump.
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Old 12-31-2007, 12:26 PM
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Default RE: 270 brass just a necked down 30-06?

A 270 does use the same case as a 30-06 so the 30-06 can be necked down for a 270......but my question would be why??? You gain absolutely nothing by doing this. The only reason to neck a case down for a different caliber is if you are loading for some wildcat caliber where factory brass is not available.

As common as 270win is you can get factory brass for that caliber relatively cheaply.
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Old 12-31-2007, 01:09 PM
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Default RE: 270 brass just a necked down 30-06?

If you neck it down it won't last as long as regular 270 brass either.
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Old 12-31-2007, 01:21 PM
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Default RE: 270 brass just a necked down 30-06?

ok...i was just curious because they have a TON of 30-06 brass and NO 270 brass and that way i would only have to buy bullets to reload

Thanks Guys....so if i tried it.....it would atleast still shoot?
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Old 12-31-2007, 02:22 PM
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Default RE: 270 brass just a necked down 30-06?

I have done it before, but you have to be careful about neck thickness. If you necks get thicker than .015 or so, you have to neck turn. But that depends on your chamber. You might have a very loose chamber where you neck goes in. But it could be very tight. A gunsmith can cast your chamber to see, or you can try it with 270 dies and by hand push a piece of brass with a bullet seated (I suggest no powder at this point), and see if it seats easily.

Point I am getting at is, you might want to just sell or trade your 06 brass.
 
Old 12-31-2007, 02:45 PM
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Nontypical Buck
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Default RE: 270 brass just a necked down 30-06?

yep.....ok

thanks guys!
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Old 12-31-2007, 06:43 PM
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Default RE: 270 brass just a necked down 30-06?

the answer to your question is yes. the case is the same from the 25-06 to 30-06. just make sure the length is correct when you size and trim them. alot of people think im wrong on this site but if you do your homework, you will find out that it is the same case with a different bullet. just make sure that people know that just because the shell says 30-06, that the ones you make are for the 270. because a 270 bullet wouldnt be to healthy for the rifling in the 30-06!
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Old 12-31-2007, 08:07 PM
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Default RE: 270 brass just a necked down 30-06?

Trade some of that 06 brass for some 270 brass. Somebody reading this thread has probably got some 270 to spare and is in need of 06. I tried doing that with a regular 270 sizing die, not really researching it first and pretty much ended up ruining my die when the case got stuck and I had to grind it with a dremel to get it off the sizing ball. Oh well lol, we all learn somehow.
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Old 12-31-2007, 09:40 PM
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Default RE: 270 brass just a necked down 30-06?

ORIGINAL: TUK101

Trade some of that 06 brass for some 270 brass. Somebody reading this thread has probably got some 270 to spare and is in need of 06. I tried doing that with a regular 270 sizing die, not really researching it first and pretty much ended up ruining my die when the case got stuck and I had to grind it with a dremel to get it off the sizing ball. Oh well lol, we all learn somehow.
Going from .308" to .277, shouldn't have ruined a die. Cause all your sizing is the neck. Thats really strange. What kinda die was it? Did you use imperial wax or some other quality lube? I mean I use neck dies on occassion with no lube whatsoever and still never had this happen. Just always curious when I see something like this.
 

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