Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
Armory Sponsor
12/1/2007 7:36:04 PM EDT
I was at the range today and a guy I had just been intoduced to had a nice 1903.

When he loaded a 30.06 round in it the shoulder of the round colapsed.  He had to

almost force the bolt to lock up.

He said the guy that had sold it to him said the original owner had it chambered

that was for reloading and competition perposes.  ( I said B.S.)

I had never heard of anything like that.  Am I wrong here?

I have very little knowledge of the 1903 but plenty of reloading

knowledge.  I looked the rifle over and could not fine any chambering  info.

Was the 1903 chambered in something else?  

Joe

12/1/2007 8:40:55 PM EDT
[#1]
The original, early M1903's were chambered for the .30-03. The pre 06's were converted to .30-06.
12/2/2007 2:43:30 AM EDT
[#2]
Yep.

The .30-03 replaced the .30-40 Krag and only lived a couple of years before it was replaced by the venerable '06.



The .30-03 (bottom) has a longer case neck.
12/2/2007 5:53:48 AM EDT
[#3]
I don't  think that has anything to do with the situation at hand though.  If a .30-06 was put in a .30-03 chamber, there would be more room, not tightness.

People did use these guns to compete with frequently.  I suppose it could have a really tight match chamber????  I don't know.  I think it would've have to been rebarreled too then at some time.  
12/2/2007 6:25:55 AM EDT
[#4]
Sounds like the chamber may be a tad short. If it were mine I would have the headspace checked.
12/2/2007 7:10:45 AM EDT
[#5]
This is what it looks like after it has been loaded and fired.  



Yes he said they shot alot in compition.

12/2/2007 9:23:21 AM EDT
[#6]
My friend owns a 1903. It has been rebarreled and it is a 308 win now. The only thing that is from the original 1903 on his gun is the housing and action.
12/2/2007 9:38:42 AM EDT
[#7]
Looks like a screwed up, too short in the shoulder chamber to me. Or, a different caliber. It's expanding where it shouldn't expand.  My 2 cents.
12/2/2007 10:06:06 AM EDT
[#8]
New barrels come short chambered so that head space can be adjusted. Perhaps someone screwed in a new barrel and did not have the chamber reamed.
12/2/2007 2:04:52 PM EDT
[#9]

Quoted:
New barrels come short chambered so that head space can be adjusted. Perhaps someone screwed in a new barrel and did not have the chamber reamed.


I think this is the most likely.  Someone screwed up or just didn't finish the job right.

I'm not aware of any other round that would be so close that you could stuff a 30.06

round in.  Surely not .308.  

But hey guys thank you for your input.  I think I'll call the guy tomorrow and tell him

he might want to get it checked out by a gunsmith in town I have a lot of faith in.

Joe
12/2/2007 2:10:48 PM EDT
[#10]
hard to tell from the pic, but is it possibly an Ackley Improved 30.06?
12/2/2007 2:46:17 PM EDT
[#11]
Something is NOT right!
12/2/2007 2:46:39 PM EDT
[#12]

Quoted:
hard to tell from the pic, but is it possibly an Ackley Improved 30.06?


Maybe so, but to me it looks like something is wrong with that shoulder.  Ackleys are usually similar sized but more precise in the edges.  That shoulder on the fired brass looks way too small.
12/2/2007 2:59:30 PM EDT
[#13]

Quoted:
hard to tell from the pic, but is it possibly an Ackley Improved 30.06?


What is Ackley improved?
12/2/2007 3:50:48 PM EDT
[#14]
That looks nothing like what a fired 30-06 case should look like.  Forget about headspace for now.  He needs to get the chamber cast to figure out what caliber it's supposed to be.  It's not 30-06 anymore.

Ty
12/2/2007 4:14:02 PM EDT
[#15]
That my friend is a n ackley improved chamber, designed to get more velocity out of the old 06 cartridge.
12/2/2007 4:22:04 PM EDT
[#16]

Quoted:
That my friend is a n ackley improved chamber, designed to get more velocity out of the old 06 cartridge.


So that being the case ( no pun intended) Does that mean the case can only be
reloaded for that particular rifle?  I realize the case is compressed very little but
also wouldn't that have a effect on controlling chamber pressure?

Joe
12/2/2007 7:19:05 PM EDT
[#17]
+4 That poor 03 has been rechambered in Ackley Improved.
12/3/2007 5:55:05 AM EDT
[#18]

Quoted:
+4 That poor 03 has been rechambered in Ackley Improved.


The shoulder is that small????????????????
12/3/2007 7:40:59 AM EDT
[#19]
I was thinking the short shoulder on the case looked like a 8mm-06 wildcat but Ackley makes a helluva lot more sense.
12/3/2007 8:13:21 PM EDT
[#20]

Quoted:

Quoted:
+4 That poor 03 has been rechambered in Ackley Improved.


The shoulder is that small????????????????


kinda hard to tell at that angle, (of the pic) and the blurry pic

how about some measurements???

length,
diameter at shoulder, neck, base etc etc

12/4/2007 4:14:10 PM EDT
[#21]
Was it maybe chambered to acklee improved?
12/5/2007 11:16:19 AM EDT
[#22]

Quoted:
Was it maybe chambered to acklee improved?


I see you've read all the posts in this thread.
12/5/2007 2:48:53 PM EDT
[#23]

Quoted:

Quoted:
That my friend is a n ackley improved chamber, designed to get more velocity out of the old 06 cartridge.


So that being the case ( no pun intended) Does that mean the case can only be
reloaded for that particular rifle?  I realize the case is compressed very little but
also wouldn't that have a effect on controlling chamber pressure?

Joe


best bet would be to reload the fired cases for that particular rifle, and probably be best to just neck size,

however if you had a couple of rifles in that caliber, you could possibly FL resize and use in both,,

how about those  measurements,,

12/5/2007 4:19:23 PM EDT
[#24]
Wow, I've read about the Ackley Improved, but had never seen one. Neither of my '03's have been so modified, but that's pretty damn cool.
12/6/2007 6:31:52 PM EDT
[#25]

Quoted:

Quoted:

Quoted:
+4 That poor 03 has been rechambered in Ackley Improved.


The shoulder is that small????????????????


kinda hard to tell at that angle, (of the pic) and the blurry pic

how about some measurements???

length,
diameter at shoulder, neck, base etc etc



Sorry it took so long.  I've been sick for a week.  I hate being sick!



My son helped with the dimentions.  Funny I can use Mastercam and Autocad with no
problem but I can't use paint worth beans!

Joe
12/8/2007 3:15:35 PM EDT
[#26]
Are you sure it's not a match chamber ?

12/8/2007 5:33:18 PM EDT
[#27]
Edited,

looking at the dimensions for both, 30.06 and AI, i think you have neither,

my guess, for what is worth, is yoteslayer and jjrea are correct,
it probably needs to be reamed,

have the headspace checked before he shoots it again

good info for case sizes here
just click on the caliber for info

12/8/2007 7:08:52 PM EDT
[#28]

Quoted:
Edited,

looking at the dimensions for both, 30.06 and AI, i think you have neither,

my guess, for what is worth, is yoteslayer and jjrea are correct,
it probably needs to be reamed,

have the headspace checked before he shoots it again

good info for case sizes here
just click on the caliber for info




Thankyou that info rlc !  That's pretty handy.

Joe
Armory Sponsor