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?

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.

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.

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.

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:D

Thanks Guys....so if i tried it.....it would atleast still shoot?

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.

RE: 270 brass just a necked down 30-06?
 

yep.....ok

thanks guys!

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!

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.

RE: 270 brass just a necked down 30-06?
 

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.

RE: 270 brass just a necked down 30-06?
 

I do it all the time the only difference is .270 cases formed from 30-06 brass will end up slightly shorter than the factory .270 brass.A normal .270Win FL die is all that's needed.If you have a surplus of 30-06 brass trade or use it up .Just don't get it mixed with someone shooting a 30-06.Accuracy was the same or better using 30-06 brass! Harold

RE: 270 brass just a necked down 30-06?
 

ok...thanks guys i really appreciate it.....

RE: 270 brass just a necked down 30-06?
 

What do you guys think that the best and easiset way of trimming them would be?

RE: 270 brass just a necked down 30-06?
 

It was a Lee die. And I just used the One Shot Lube by Hornady. I dont think that the die is totally trashed, but I do think that I should send the decapping rod back for exchange since I nicked it with the grinding wheel. I dont blame the die either, since I was the dumbass that tried resizing the 06 down on a whim without researching how to do it properly. There might have been a better way to get the stuck case out too, but I broke the cheap press so it was stuck on that half of the press too lol with no way of leveraging it out.

RE: 270 brass just a necked down 30-06?
 

You won't have to trim them for at least 3 reloads as they will be shorter than the .270 Win to start with.Lube the insides of the necks [Q-tip] if you want less hassel and more mileage out of your brass.................Harold[ I make .308 Norma Mag out of .338 Win Mag brass as well]

RE: 270 brass just a necked down 30-06?
 

Yep, when sizing down brass, need some good Lube. Also, lees are a little rough. I use one shot alot but try some imperial next time. Slick stuff

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RE: 270 brass just a necked down 30-06?
 

As indicated above, sure you can neck down .30-06 brass to .270 Win...but it's really a waste of time since the .270 is a standard and popular cartridge and brass is readily available from all manufacturers and is cheap. If you have a bunch of once fired .30-06 brass you'd be better off IMO selling it (some gun shops will buy it, or you could put it on Ebay) and buying new .270 brass to start with.

But if you don't mind the time and effort required to neckdown, resize and possibly neck turn the -06 brass, then it'll work just fine. If you were contemplating a wildcat like the 6.5-06 then it might be a different story, but I wouldn't do it though for a standard cartridge though.

Mike

RE: 270 brass just a necked down 30-06?
 

one other important item not mentioned is when down sizing it is a good idea to anneal the case necks, since the heat from firing them makes the hard. then working them in the dies to cram them down to a smaller size can cause them to split and then they are junk. as everone else said just buy the .270 brass there is tons of it on ebay for cheap.

RE: 270 brass just a necked down 30-06?
 

............JUst to give you an idea, my brother-in-law tool several hundred once-fired 270 brass to a local gun show awhile back, and couldn't even get anyone to talk to him about it......

RE: 270 brass just a necked down 30-06?
 

The .270 Winchester is indeed just a .30/'06 case necked down to hold bullets of .277" in diameter. In the necking-down process, the case neck gets slightly longer; however, the '06 and the .270 use the same set of headspacing gauges...... You missed out on this deal by about 82 years, as the .270 Win. cartridge dates from 1926.......

You need nothing special to do this, a .270 Win. FL die will do it - I have done it. As a matter of fact, I have made .25/'06 brass the same way, but I ran it through a .270 FL die first, then a .25/'06 FL die........

RE: 270 brass just a necked down 30-06?
 

I've used military 06 brass to make a LOT of things, including 270 win. Just full length size it in good set of dies and you're good to go. Cases formed this way actually come out with slightly shorter necks than factory 270 brass...but it doesn't matter. After you fire it 3 or 4 times, it will be the same length. :)

RE: 270 brass just a necked down 30-06?
 

i agree with big country. it should have never ruined the die. was the die dirty. try cleaning them in the tumbleronce in awhile to try to prevent a stuck case or different lube.

RE: 270 brass just a necked down 30-06?
 

The fastest way to ruin a reloading die is to stick a case in it and then try to extract it with a hammer and screw driver or some such. RCBS Stuck Case Remover Kit should be a MUST for every reloader. In my 50 years of reloading I've stuck about a dozen cases and it always sends me into a foaming at the mouth rage. But the RCBS tool has always saved the day.

Cases stick (in any good reloading die) for only one reason...........not enough lube. (Or I've seen one that had a bad rim.)

RE: 270 brass just a necked down 30-06?
 

For $75.00 you can get 500 once fired emptys here.


http://www.brassmanbrass.com/inventory-001.html

RE: 270 brass just a necked down 30-06?
 

At one time I use to run 30-06's through a 270 die and them run the reshaped case through a 25-06 to get casing for my 25-06. They always worked fine but after they came available through the sporting good store, I just buy the new casing. Easier!!!