.308 necked to .25 cal

gunmart · May 21, 2000, 05:34 PM

is there such thing as atrue .308 case necked to .25 cal.if so what is it called and does anyone have any data on it.

**Mike Irwin** · May 22, 2000, 01:25 AM

Well, essentially, it would be pretty much identical to the .250 Savage. Probably isn't much point to necking the .308 down to .25 as the .250 Savage has been there for a long time...

May 22, 2000, 09:04 AM

It's been done, and it's called the .25 Souper.

gunmart · May 22, 2000, 08:02 PM

does anyone have data or die info for the ,25 souper.its execaly what i have been looking for.

gunmart · May 23, 2000, 08:27 AM

where can i get dies.a search of the web showed no results.? a internet freind sent me the ackley infor for it.60 gr bullets at 4000fps.wow.100 gr at 3150.wowowowowowo.why didnt this cartidge ever take over.remingtom should market this round as the 25 rem.

Art Eatman · May 23, 2000, 09:02 AM

So with the Ackley shoulder, you've essentially got a shortened .25-'06?

Art

gunmart · May 24, 2000, 06:46 PM

yes

gunmart · May 25, 2000, 01:21 PM

anyone had any results loading this cartridge?
i ordered the reamers today they were$225.
the most expensive to date.would anyone care to send me a barrel.i ream yours for $85.00.this will help ofset the cost of the reamer.

Paul B. · May 25, 2000, 02:05 PM

Art. The .25 Souper is either the .308 Win.necked down to .25 caliber, or the .243 necked up, your choice with no other change. There is no Ackley shoulder.
I would estimate that is would be somewhere between the .257 Roberts and 25-06 in potential.
Paul B.

Paul B. · May 25, 2000, 02:09 PM

Gunmart. Huntington's has the dies you are looking for in their latest catalog. Die group is "G". Part # 56145. They are special order dies. The full length set is $86.85 plus S&H. Dies are made by RCBS.
Paul B.

gunmart · May 27, 2000, 10:16 PM

hey just got in my dies.they were c-h tool and die mt vernon oh.they were in stock and cost about $60. they were in my hands in two days.they have listings for many many obscure dies.

gunmart · May 27, 2000, 10:18 PM

ps c-h tool and dies phone # if anyone interested is 6143977214.and fax #6143976600

**Bud Helms** · May 28, 2000, 12:23 AM

Ballistically, this should come out about where the Ackley "Improved" Savage 250-3000 did. 'About a tenth of an inch difference in most of the length dimensions of the case between the .308 and the Savage .250, with the .250 being the shorter of the two.

I thought that's what you started out to do, Gunmart.

[This message has been edited by sensop (edited May 28, 2000).]

Markk9 · May 28, 2000, 06:52 PM

The 25 Souper load info can be found in the A-Square manual.
87grain bullet
H-4895 39.0 to 43.0
IMR-3031 38.0 to 42.0
RL-15 41.0 to 44.0

117grain bullet
IMR-4064 36.0 to 38.0
RL-15 38.0 to 40.0
RL-19 45.0 to 48.0

Markk9

gunmart · May 28, 2000, 08:40 PM

i kinda had my heart set on the 100 gr nosler.any info from someone on that would be great.?

REDMISTMD · May 28, 2000, 08:50 PM

Loading data can be found in P.O. Ackley's Hanbook.If you dont have one here are some starting loads for the 100 gr.44gr of Imr 4350 to 3035fps. 49 gr of 4831 to 3020 fps. 41 gr of 4320 to 3150fps.These are all pretty old starting loads and there are a lot of powders that are close to these that would work better.By the way there is a "improved" version called the 257. Durham Jet. Pretty good ballistics about a 150-200fps better than the 25 Souper.

gunmart · May 29, 2000, 04:10 PM

does the duram jet work off the .308 case?

May 21, 2000, 05:34 PM	#1
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	is there such thing as atrue .308 case necked to .25 cal.if so what is it called and does anyone have any data on it.

May 22, 2000, 01:25 AM	#2
Mike Irwin Staff Join Date: April 13, 2000 Location: Northern Virginia Posts: 41,390	Well, essentially, it would be pretty much identical to the .250 Savage. Probably isn't much point to necking the .308 down to .25 as the .250 Savage has been there for a long time...

May 22, 2000, 09:04 AM	#3
Jeff, CA Guest Posts: n/a	It's been done, and it's called the .25 Souper.

May 22, 2000, 08:02 PM	#4
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	does anyone have data or die info for the ,25 souper.its execaly what i have been looking for.

May 23, 2000, 08:27 AM	#5
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	where can i get dies.a search of the web showed no results.? a internet freind sent me the ackley infor for it.60 gr bullets at 4000fps.wow.100 gr at 3150.wowowowowowo.why didnt this cartidge ever take over.remingtom should market this round as the 25 rem.

May 23, 2000, 09:02 AM	#6
Art Eatman Staff in Memoriam Join Date: November 13, 1998 Location: Terlingua, TX; Thomasville, GA Posts: 24,798	So with the Ackley shoulder, you've essentially got a shortened .25-'06? Art

May 24, 2000, 06:46 PM	#7
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	yes

May 25, 2000, 01:21 PM	#8
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	anyone had any results loading this cartridge? i ordered the reamers today they were$225. the most expensive to date.would anyone care to send me a barrel.i ream yours for $85.00.this will help ofset the cost of the reamer.

May 25, 2000, 02:05 PM	#9
Paul B. Senior Member Join Date: March 28, 1999 Location: Tucson, AZ Posts: 3,802	Art. The .25 Souper is either the .308 Win.necked down to .25 caliber, or the .243 necked up, your choice with no other change. There is no Ackley shoulder. I would estimate that is would be somewhere between the .257 Roberts and 25-06 in potential. Paul B.

May 25, 2000, 02:09 PM	#10
Paul B. Senior Member Join Date: March 28, 1999 Location: Tucson, AZ Posts: 3,802	Gunmart. Huntington's has the dies you are looking for in their latest catalog. Die group is "G". Part # 56145. They are special order dies. The full length set is $86.85 plus S&H. Dies are made by RCBS. Paul B.

May 27, 2000, 10:16 PM	#11
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	hey just got in my dies.they were c-h tool and die mt vernon oh.they were in stock and cost about $60. they were in my hands in two days.they have listings for many many obscure dies.

May 27, 2000, 10:18 PM	#12
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	ps c-h tool and dies phone # if anyone interested is 6143977214.and fax #6143976600

May 28, 2000, 12:23 AM	#13
Bud Helms Senior Member Join Date: December 31, 1999 Location: Middle Georgia, USA Posts: 13,198	Ballistically, this should come out about where the Ackley "Improved" Savage 250-3000 did. 'About a tenth of an inch difference in most of the length dimensions of the case between the .308 and the Savage .250, with the .250 being the shorter of the two. I thought that's what you started out to do, Gunmart. [This message has been edited by sensop (edited May 28, 2000).]

May 28, 2000, 06:52 PM	#14
Markk9 Member Join Date: March 18, 2000 Location: Greensboro, NC Posts: 91	The 25 Souper load info can be found in the A-Square manual. 87grain bullet H-4895 39.0 to 43.0 IMR-3031 38.0 to 42.0 RL-15 41.0 to 44.0 117grain bullet IMR-4064 36.0 to 38.0 RL-15 38.0 to 40.0 RL-19 45.0 to 48.0 Markk9

May 28, 2000, 08:40 PM	#15
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	i kinda had my heart set on the 100 gr nosler.any info from someone on that would be great.?

May 28, 2000, 08:50 PM	#16
REDMISTMD Member Join Date: May 17, 2000 Location: west jordan, utah U S A Posts: 55	Loading data can be found in P.O. Ackley's Hanbook.If you dont have one here are some starting loads for the 100 gr.44gr of Imr 4350 to 3035fps. 49 gr of 4831 to 3020 fps. 41 gr of 4320 to 3150fps.These are all pretty old starting loads and there are a lot of powders that are close to these that would work better.By the way there is a "improved" version called the 257. Durham Jet. Pretty good ballistics about a 150-200fps better than the 25 Souper.

May 29, 2000, 04:10 PM	#17
gunmart Senior Member Join Date: March 2, 2000 Posts: 551	does the duram jet work off the .308 case?