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25-06AI from '06 Brass

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  #8  
Unread 07-05-2009, 12:48 AM
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Join Date: Jul 2001
Location: Saskatchewan, Canada
Posts: 13
Re: 25-06AI from '06 Brass

You will have no problems with Lapua 30-06 brass sized in a FL 25-06 die if you use a good lube like imperial sizing wax. I just was at the range today fire forming and testing loads for a Cooper 25-06AI with a 26in barrel. I've done a full box (100) of Lapua 30-06 to 25-06AI to date with out ruining a single case, and they have all turned out great, although a little short (OAL).

I found that trimming the 30-06 brass to 2.480 OAL once resized in a 25-06 FL die (Redding) would be right at 2.494 OAL. After fire forming the OAL shortened up and the neck ended up being at 0.288 with a seated bullet, so no "need" to neck turn. Although I have added neck turning to my loading and take off around .002.

Using quality brass like Lapua, and a good lube like Imperial Sizing Wax will get you great results. Glad to hear from fellow 25-06 AI shooters!
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  #9  
Unread 07-06-2009, 12:57 AM
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Join Date: Jan 2005
Location: Ohio
Posts: 173
Re: 25-06AI from '06 Brass

When I built my 25-06AI I bought it with a tight neck So I had no choice but to turn the necks. I used the standard 25-05 remington brass and accuracy is excellent. I can regularly get into the low 3S and have had a few 3 shot groups in the 2S. just yesterday I made 3 sort of long shots on groundhog. The farthest was 600 yards I connected on the second shot. when I sell or wear out this rifle I will form the brass the same way again.
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  #10  
Unread 07-14-2009, 07:03 PM
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Join Date: Jul 2009
Location: Northern MN
Posts: 235
Re: 25-06AI from '06 Brass

I am a newbie on this forum so bear with me....The wealth of knowledge and experience on here amazes me.....I am glad to be on-board and hope we can share many projects and adventures.

I have been necking down 30-06 brass to 25-06 for several years.....Once fired stuff from my 30-06 and a friends all Rem brass....One shot through my RCBS std flr die, hardly anything to take off in the trimmer and ready to go....Seldom have I ever ruined any, maybe 1 in a hundred....Neck sometimes look a little odd but they chamber fine in my Rem 700 and my Douglas barreled Savage.....They shoot good the first go around and I keep them separated for neck sizing in the Savage later....I have not experienced any problems with tight necks so I assume the chamber in the Douglas is SAMMI also.....Just my experience, the Laupa brass may be a whole new ball game as I have never used it....Just thought I would add my .02...

Later,
Randy
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  #11  
Unread 07-18-2009, 10:52 AM
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Join Date: Feb 2005
Location: Banks, Oregon
Posts: 73
Re: 25-06AI from '06 Brass

I don t have a an AI but I just sized 200 rnds of 30-06 LC Match brass a couple weeks ago by just running them through the redding FL 25/06 sizing die, I didnt loose any cases. The only thing was like someone already said. They were tight to chamber and there was it was a bit harder to close the bolt then I like. it was all where the neck meets the shoulder. after one fire forming shot they worked fine. But with you having a 25/06 AI you shouldnt have this problem

Last edited by pythonwill; 07-18-2009 at 11:05 AM.
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  #12  
Unread 07-18-2009, 12:17 PM
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Join Date: Dec 2008
Location: rathdrum, id.
Posts: 5,171
Re: 25-06AI from '06 Brass

Hi Wade. I shot a 6.5-06 AI for years and you WILL get short cases when fire forming any '06 length brass. The reason is because when you push the case body out to .452 from .440 and move the shoulder from 17.5 degrees to 40 degrees, the brass has to move and the only direction available is shorter. I used 270 brass then trimmed and turned to spec. I currently shoot a 6.5 Sherman which is a case of my own design based on the .270 case. It is similar to the Ackley case but has a greater case capacity. When I fire form the .270 case, it shrinks from 2.540" to approx. 2.525 (.015"). Your '06 case will do approx. the same. 2.494 to something less (probably .010 to .015". Hope this helps! Feel free to contact me..........Rich
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  #13  
Unread 07-18-2009, 12:21 PM
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Join Date: Dec 2002
Location: mathias wv
Posts: 987
Re: 25-06AI from '06 Brass

use cornmeal/unique/TP, then neckturn, problem solved and money saved.
RR
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  #14  
Unread 07-18-2009, 12:32 PM
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Join Date: Dec 2008
Location: rathdrum, id.
Posts: 5,171
Re: 25-06AI from '06 Brass

Hi Wade. I shot a 6.5-06AI for years and you Will end up with short cases (approx .015") The reason is, when you blow the case body out from .440" to .452" and move the shoulder from 17.5 to 40 degrees, the brass HAS to shrink in length. I used .270 cases and then trimmed and turned. In most cases you didn't HAVE to turn but obviously was better for accuracy. If you don't turn necked down '06 cases you can end up with excessive pressures because of a too thick neck. (depends on what your chamber spec is? I now shoot a 6.5 Sherman which is my own design based on a .270 case. It is similar to the Ackley case but has considerable more case capacity. When I fire form it shortens approx. .015"Hope this helps! Feel free to contact me.....Rich
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