First Merry Christmas to all, its been awhile since I've been on here. My question is I have an abundant supply of 270 winchester and 30-06 brass, if I take and neck down either one of them to 25-06 Rem will I need to turn the necks, I have done this before and decent with these, all I am looking to do is for a good hunting loads. I know there is alot to trim off the 270 due to the longer neck.

I've necked down both with no trouble....

I won't do it anymore as I also have the .270 and the .30-06 and now days I want the proper headstamp.

I no longer have either of the two, but I do like to keep the brass as winchester or rem.,I just thought I would use it up instead of it lying on the shelf. I guess after so long you lose your membership on here anyone relate to this because I had to renew my user name and pw.

I believe they up date the members list ever so often. I have been here since around 1998 and have had to start fresh a few times.
Dave
The only issue I have had using 270 or 30/06 for the 25 is the donut that is formed. once that it is fire formed the donut will be on the inside so be aware not to seat the bullet to deep. I use boattail mostly anyway.

I think I will get started on the 270 brass, cleaning and full length resizing, there is no need in letting it go to waste, I don't plan on owning another 270, because I have so much .25 caliber supplies.

Not that either wouldn't work but like mentioned I have a .270 as well and the two are too close for mistakes to happen. With the '06 however there is enough difference I have used it quite a bit.

I usually neck it down to the point it will just be able to be closed in the action with some resistance. Once fired I have never noted the donut with them.

Sell off your surplus brass to fund new brass with the proper head stamp. Salvaging old brass was common in the old days when cases were not that plentiful or available in a particular caliber but that is not the case today.

If your are compelled to salvage your old brass then use the 06 brass or remember to trim your 2.540 270 brass to 2.494

Yeah, I guess brass is fairly "plentiful", but it is also pretty damn expensive. Add to that the fact that you can probably make brass that better fits your chamber (heed Mke's suggestion above and only run it into your .25-06 sizer far enough for it to chamber without excessive resistance on the bolt.)

Most factory chambers are on the "loose" side, and I've rarely found the need to thin the necks on brass I've reformed for a smaller caliber. The slight thickening of the neck when you squeezed .270 (or '06's) down to .25 caliber will usually just leave a tad less excess room compared to factory .25-06 brass.

Although I use both reformed .30-06 brass and factory .25-06 brass in my gun, I don't find any difference in accuracy (very good) between the two, even with the initial fireforming load with resized '06 brass.

As to "proper" headstamp, if you're a shooter who is depending on the headstamp to tell you what you're holding in your hand, then you don't need to be engaged in handloading. Besides, stick a .25-06 round in a .270 or .30-06 chamber and let one go and all you'll get is poor accuracy, low pressure, and low velocity. Do the reverse and the bolt won't close. Not exactly "Nightmare on Elm Street", now is it?

I appreciate all you guys very informative input, I just hate to see good brass go to waste,as expensive as it is now, I am a fairly accomplished reloader of 14 years and I don't have to rely on the headstamp. The only concern would be accidentaly loosing one and someone with no knowledge of bullets fire it off in 30-06,or 270. Like someone stated there should be no harm but you know strange things can and do happen.

The 25-06 was around as a wildcat for a long time--probably fifty years before Remington adopted it in 1969. Prior to that, making your own from was the only choice--couldn't buy it. I agree having the proper headstamp is a good idea. When I have similar sized, I like to buy nickle brass for one which makes them readily identifiable. Along similar lines is having a bolt action 30-30 which will safely shoot pointed bullets, but hope they don't follow Murphy's Law and end up where they don't belong--sorta like a pet rattlesnake. Get a .308 and be done with it.

If you look around you can get once fired 270 brass for around $17 per 100. Try WWW.oncefiredbrass.com