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#370140 - 08/29/07 07:48 AM New .25X,307 AI wildcat
worriedman
6 Point


Registered: 10/12/06
Posts: 984
Loc: Bells

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Been wanting something different, here we go. Had Kim Monothy of Chase Mountain Custom (chasemountaincustom.com)do me a stub barrel in .25X.307AI, basically a rimmed .308 necked down to .25 caliber, Pac Nor barrel heavy varmint profile turned to match the donor stub.






Cases. .307 Win. parent, fire formed .25X.307, and .243 for comparison.


The diameter required him to fit and work a new walnut forearm, pillar bedded and free floated.


I had acquired a new Pro Hunter thumb hole composite stock, so I decided to fit a forearm to match. Standard 26" rifle forearms are too thin, so I picked up a 12 ga. forearm and went to work.

Used my old 1" pipe that I lap scope rings with, diameter close enough to the barrel to make it work. Deepened the channel and evened it all out.

Wanted to put aluminum pillars in to space the forearm off the barrel, so I got the bright idea to tap the screw holes in the forearm and thread the stand offs.

First problem, how to hold the stand offs for threading? I drilled a 5/16 bolt and tapped it to 10X24tpi.


Set the stand off on it and threaded 3/8"X24tpi.


Got a "Q" bit to relieve the existing screw holes in the forearm, and tapped them to the same thread pattern.


Slotted the stand offs with a dremel tool to give me "screw driver" bite.


Put epoxy on the threads, set the studs a little high, and used the bar to "cove" the tops to match the barrel profile.


Ran out of "daylight" last night. will finish up by building dams of modeling clay in the hollow spaces to surround the pillars and fill with JB weld, clamp to the barrel to form a shoulder with the pillars in the center.
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#370359 - 08/29/07 09:34 AM Re: New .25X,307 wildcat [Re: worriedman]
.444 Marlin
16 Point


Registered: 08/10/02
Posts: 15458
Loc: Benton, Polk Co. Tenn.

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Sounds like a badarse little round. But I'd rather have it in a .308 case than a .307
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#370431 - 08/29/07 10:11 AM Re: New .25X,307 wildcat [Re: .444 Marlin]
worriedman
6 Point


Registered: 10/12/06
Posts: 984
Loc: Bells

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Break action guns really like the rim, makes head space a moot point for reloading. Having gone to the AI, I have more powder capacity than a .308 anyway. Plus, minimum body taper reduces thrust back on the frame. I have some big boomers in bolt action, this is my Encore toy!
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"It does not require a majority to prevail, but rather an irate, tireless minority keen to set brush fires in people's minds." Samuel Adams

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#371071 - 08/29/07 03:23 PM Re: New .25X,307 wildcat [Re: ]
Whelen Man
TnDeer Old Timer
8 Point


Registered: 03/12/99
Posts: 2327
Loc: Athens, TN, USA

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Sounds like it's basically a rimmed 25 Souper. I was just looking at that case last week with thoughts of chambering one.
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#371144 - 08/29/07 03:58 PM Re: New .25X,307 wildcat [Re: Whelen Man]
mr.big
Non-Typical


Registered: 01/03/01
Posts: 28895
Loc: Copper Head Road

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I bet that`ll shoot,but I`d head space off the shoulder anyway.
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#371158 - 08/29/07 04:02 PM Re: New .25X,307 wildcat [Re: mr.big]
TiminTN
12 Point


Registered: 06/18/00
Posts: 6340
Loc: Memphis,Tennessee U.S.A.

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Welcome worriedman.
I bet she`s a sweetheart.
If it were mine, I`d go to the smith and show him the cases and have him polish the chamber.
It should have been done before you got it.
Much to be said for the lathes equipped with flushing devise.
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#371284 - 08/29/07 05:03 PM Re: New .25X,307 wildcat [Re: TiminTN]
Tiny
16 Point


Registered: 02/09/02
Posts: 17786
Loc: Knoxville

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Welcome
little rifle and round.
Just curoius why you went that way instead of the 25/35.
Seems the 30/30 cases would be more readily available down the road,but were talking custom so that does go out the window. ;\)
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#371721 - 08/29/07 08:43 PM Re: New .25X,307 wildcat [Re: Tiny]
pety221
10 Point


Registered: 02/18/06
Posts: 4570
Loc: whitwell

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sounds like bad lil round kinda like tinys idea for a youth gun
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#371983 - 08/29/07 09:43 PM Re: New .25X,307 wildcat [Re: Whelen Man]
worriedman
6 Point


Registered: 10/12/06
Posts: 984
Loc: Bells

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 Originally Posted By: Whelen Man
Sounds like it's basically a rimmed 25 Souper. I was just looking at that case last week with thoughts of chambering one.


It basically is, with a rim.
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"It does not require a majority to prevail, but rather an irate, tireless minority keen to set brush fires in people's minds." Samuel Adams

Life Member NRA, TFA, Tennesseans for Liberty

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#371996 - 08/29/07 09:48 PM Re: New .25X,307 wildcat [Re: mr.big]
worriedman
6 Point


Registered: 10/12/06
Posts: 984
Loc: Bells

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 Originally Posted By: mr.big
I bet that`ll shoot,but I`d head space off the shoulder anyway.


Plan on neck sizing, watching the cases for length, and bumping the shoulder as needed. I use the Bellm headspace gauge each round of reloads, so in effect I am headspacing off the shoulder, but the rim is nice to have!
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"It does not require a majority to prevail, but rather an irate, tireless minority keen to set brush fires in people's minds." Samuel Adams

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