The Accurate Reloading Forums
A Rimmed .30/06
23 September 2012, 01:34
Vol717A Rimmed .30/06
What would it take in terms of tooling and setup to rechamber a drilling's .30/06 barrel to accept a rimmed case formed in a .30/06 die? I have trouble with the extractor on my Sauer drilling not catching the fired case. I took a 9.3X74R case, cut it off to 62mm, and ran it through a .30/06 sizing. The result is shown below compared to a rimless .30/06. A little fireforming may be necessary to iron out the shoulder, but the case will conform to a .30/06 chamber. The work needed is to cut the rim rebate in the chamber and the extractor so that the case will enter the chamber and the action will close on the case. Could this be done on a lathe or would it take a specially-ground chambering reamer that does not cut the chamber, but uses the chamber to guide a pilot shaft on which the rim cutter is mounted. Secondly, can anyone recommend a gunsmith to do the work?
Quick, Cheap, or Good: Pick Two
23 September 2012, 07:22
Vol717quote:
Originally posted by Vol717:
What would it take in terms of tooling and setup to rechamber a drilling's .30/06 barrel to accept a rimmed case formed in a .30/06 die? I have trouble with the extractor on my Sauer drilling not catching the fired case. I took a 9.3X74R case, cut it off to 62mm, and ran it through a .30/06 sizing. The result is shown below compared to a rimless .30/06. A little fireforming may be necessary to iron out the shoulder, but the case will conform to a .30/06 chamber. The work needed is to cut the rim rebate in the chamber and the extractor so that the case will enter the chamber and the action will close on the case. Could this be done on a lathe or would it take a specially-ground chambering reamer that does not cut the chamber, but uses the chamber to guide a pilot shaft on which the rim cutter is mounted. Secondly, can anyone recommend a gunsmith to do the work?
Quick, Cheap, or Good: Pick Two
23 September 2012, 07:43
45-70 shooterYour problem is probably the RP brass. I had the same problem with a 35 Whelen with factory RP ammo. The rim diameter on it and all RP cases based of the 7x57 head design tend to run small.
Suggest before you go through all this you try some Sellier & Bellot ammo as they have the largest rim diameter of any 30-06. Using them to make 35 Whelens fixed my extraction/ejection issues 100%. (It's also a lot better ammo and cases than anything from RP !)
23 September 2012, 15:38
Vol717I've used several brands of brass. The problem is that it is a rimless case. I think I'll talk to a reamer maker about a special reamer for this application.
Quick, Cheap, or Good: Pick Two
23 September 2012, 17:05
jimatcata 30r blaser will clean up a 30-06 chamber... then you have dies, brass, reamer available...
go big or go home ........
DSC-- Life Member
NRA--Life member
DRSS--9.3x74 r Chapuis
23 September 2012, 17:44
Vol717I have a Ruger no 1 in 30R Blaser and I know that this cartridge was developed for the purpose of rechambering 30/06 drillings. I don't want to change the chamber as I want the option of using the rimless case in a pinch. The drilling has a spring-loaded extractor pin that is supposed to aid in extraction but it does not work well. I suppose I should have posted this on a gunsmithing forum.
Quick, Cheap, or Good: Pick Two
23 September 2012, 23:10
JBrownquote:
Originally posted by Vol717:
I think I'll talk to a reamer maker about a special reamer for this application.
I would call Dave Manson(Manson reamers). IME he is extremely helpful when dealing with odd/custom/fix-it situations.
Jason
"You're not hard-core, unless you live hard-core."
_______________________
Hunting in Africa is an adventure. The number of variables involved preclude the possibility of a perfect hunt. Some problems will arise. How you decide to handle them will determine how much you enjoy your hunt.
Just tell yourself, "it's all part of the adventure." Remember, if Robert Ruark had gotten upset every time problems with Harry
Selby's flat bed truck delayed the safari, Horn of the Hunter would have read like an indictment of Selby. But Ruark rolled with the punches, poured some gin, and enjoyed the adventure.
-Jason Brown
23 September 2012, 23:35
Vol717Thanks. I sent Dave an email today.
Quick, Cheap, or Good: Pick Two
24 September 2012, 01:50
D HumbargerI think that I would get the extractor repaired or replaced first.
Doug Humbarger
NRA Life member
Tonkin Gulf Yacht Club 72'73.
Yankee Station
Try to look unimportant. Your enemy might be low on ammo.
24 September 2012, 06:53
jeffeossoThere are 7 and 8 x65r cases readily available. As well as i think 444 cases. Choose one and make a conversion reamer. And have a belt cut into your dies
24 September 2012, 08:38
Vol717quote:
7 and 8 x65r cases readily available
Same head size, but point taken, I wouldn't have to trim as much off the case with a 7X65R. I used to have a Sauer 3000 in 12 and 7X65R. Sold it and used an 8X57JR for a few years until a Sauer 300 12/.30/06 came along. Now I miss the rim.
Quick, Cheap, or Good: Pick Two
24 September 2012, 16:34
hawkinsA 30/40 Krag would be close.
26 September 2012, 23:44
ForrestBquote:
Originally posted by D Humbarger:
I think that I would get the extractor repaired or replaced first.
What fun is there in that solution?
______________________________
"Truth is the daughter of time."
Francis Bacon
27 September 2012, 01:54
capowardIf I recollect correctly, isn't the 405 Winchester basically a straight 30-06 case with a rim? If so...405 brass is readily available and a possible solution...
Jim
"Life's hard; it's harder if you're stupid"
John Wayne 27 September 2012, 07:59
Vol717The 405 Winchester shares the rim size of the .30-40 Krag, so possibly that would be a good parent cartridge too. I have corresponded with Dave Manson and he can make a reamer to do the trick. Now I'll have to do my research to see which is the best parent case.
Quick, Cheap, or Good: Pick Two
21 October 2012, 00:49
Vol717This goes to show that my idea isn't new. Here is a Winchester Highwall in .30/06 Rimmed:
http://merzantique.com/item/on...gh-wall-target-rifle
Quick, Cheap, or Good: Pick Two
21 October 2012, 15:32
Nordic2Why not a 30r Blaser.
21 October 2012, 16:46
Vol717I don't want to alter the chamber because I want to be able to shoot .30/06 in a pinch.
Quick, Cheap, or Good: Pick Two
26 October 2012, 02:17
1894mk2quote:
Originally posted by Vol717:
I have a Ruger no 1 in 30R Blaser and I know that this cartridge was developed for the purpose of rechambering 30/06 drillings. I don't want to change the chamber as I want the option of using the rimless case in a pinch. The drilling has a spring-loaded extractor pin that is supposed to aid in extraction but it does not work well. I suppose I should have posted this on a gunsmithing forum.
IMHO what you are proposing makes a lot of sense if it can be done. I always wanted a rimmed 243 in my K95 forming from trimmed/formed 6.5x57R cases and to have a spare rimless extractor in my pocket in case I had to use factory 243. In the end I never managed it (K95 barrel now £1400!
)
26 October 2012, 02:18
1894mk2quote:
Originally posted by Vol717:
The 405 Winchester shares the rim size of the .30-40 Krag, so possibly that would be a good parent cartridge too. I have corresponded with Dave Manson and he can make a reamer to do the trick. Now I'll have to do my research to see which is the best parent case.
I would have thought 7x65R