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justcurious
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Reged: 17/03/10
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Loc: Germany
Commercial Oberndorf 98 in 6,5x55 - info needed
      #331118 - 13/08/19 07:11 PM



There were very few Original Oberndorf commercial 98 Mausers .

At least 2 specimen here documented.

There were a lot more modified standard actions by riflesmiths.

If you try to load more than 4 rounds in a 98 standard magazine box without modification you are in trouble.

So what I want to know are the exact dimensions of the factory made magazine box for the Commercial Model 98 to hold the usual 5 rounds ( A modified standard box ore did they use a special made box following the exact dimensions of the older Model 96 ?

If you compare the Magazine Box Dimensions of the Mod 96 Swede ( in brackets )and a standard 98 Mauser

Length : 84 mm ( 82,45 )

Height : 33 mm ( 33 mm)

Rear width : 22,4 mm ( 23,09 )

Front width : 17,7 mm ( 18,3 )

Anyone here with a Original Oberndorf 98 in that Swede caliber ?


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ColoradoMatt1
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Reged: 01/01/14
Posts: 99
Loc: Northern Colorado
Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: justcurious]
      #331129 - 13/08/19 08:31 PM

There is a factory memo in one of Speedís books that gives factory mag box length and width dimensions. I donít recall if it gives depth. I can try to dig it out later tonight, or perhaps someone can beat me to it. However, Iíve notices that rounds with wider shoulders and bases have the inside of their mag box walls scalloped. That is the case with my Oberndorf 9.3x62, anyway. Itís a standard depth mag and holds 5 down.

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justcurious
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: ColoradoMatt1]
      #331131 - 13/08/19 08:37 PM

The Originals were not scalloped. Scalloping was used as aftermarket modification by some smiths.
The dimension table in Speedīs book lacks the dimesions for the 6,5x55.

Edited by justcurious (13/08/19 08:40 PM)


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Igorrock
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: justcurious]
      #331147 - 14/08/19 02:08 AM

Quote:

Anyone here with a Original Oberndorf 98 in that Swede caliber ?




I have had one but some years ago sold it to California.

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ColoradoMatt1
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: justcurious]
      #331171 - 14/08/19 09:21 PM

Quote:

The Originals were not scalloped. Scalloping was used as aftermarket modification by some smiths.
The dimension table in Speedīs book lacks the dimesions for the 6,5x55.




It makes no sense to me that Mauser would put out commercial sporting rifles that would not feed well enough that they needed aftermarket modification. Iíve come across several Oberndorf sporters with the inner magazine wall scallops, including 10.75x68. Iím not saying you are necessarily wrong, just that I donít see why Mauser would put out poor feeding rifles that needed help.

Edited by ColoradoMatt1 (14/08/19 09:22 PM)


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Igorrock
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: ColoradoMatt1]
      #331173 - 14/08/19 11:31 PM

Could someone tell me what in this case meaning when talking "scalloping". I took my 6,5x55 Mauser down once and doesnīt notice anything special in itīs magazine.

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justcurious
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Reged: 17/03/10
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Loc: Germany
Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: Igorrock]
      #331183 - 15/08/19 04:51 AM

That is a good question.
Canīt imagine that CM1 had in mind the bread and butter treatment as shown in the picture.
That feature shows every Oberndorf magazine box - small or big cartridge.
If so ,it was a misunderstanding.

What some smiths did were longitudinal radiussed cuts on the sidewall to give more space. Never a factory treatment.


Edited by justcurious (15/08/19 04:53 AM)


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93x64mm
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: justcurious]
      #331184 - 15/08/19 05:55 AM

A very nice & certainly a most interesting piece to say there Justcurious!
I've never heard of 'scalloping' before...I have now!
One to hand down thru the family, definitely a keeper this one.


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ColoradoMatt1
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: 93x64mm]
      #331192 - 15/08/19 12:47 PM

I am talking about the ďbread and butter treatmentĒ, but the scallops are different for each round. The feed rails can be a little different as well. I canít imagine that the follower for a 6.5x55 would be any different than standard, (if there really is a standard) but who knows.

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justcurious
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Reged: 17/03/10
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Loc: Germany
Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: ColoradoMatt1]
      #331210 - 15/08/19 11:37 PM

What an enormous expenditure only for the magazine boxes.

There were at least 18 (caliber related ) differently dimensioned boxes .
Every box either with floorplate leaver release or button in the trigger guard bow.
And moreover every type with DST or single stage.
Because they simply did not insert an DST into the otherwise identical bottom metal , but made it integral with the bottom metal you must quadruple the 18 caliber related dimensions and we have round about 72 maschine setups for the bottom metal alone.

That is only one aspect why the Commercial 98 Mauser rifles are so reliable and highly estimated up to now.


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ColoradoMatt1
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: justcurious]
      #335027 - 30/11/19 04:32 AM

I was just reading John Speeds Oberndorf Sporter book, and he mentioned that the floor plate on 9.3x62 Mauser actions are thicker, I assume, to allow a little more recess room for the follower spring. I wonder if the same is true for Oberndorf 98 sporters in 6.5x55. I own an original Type A in 9.3x62 with an inside bow floorplate release. The magazine is definitely standard depth, but Iíve never examined the floorplate. It holds five down, no problem. I have a complete Oberndorf commercial 30-06 action. I can take some measurements of the two floorplates for comparison, if you are interested. BTW: the 9.3 x62 floorplates donít really look thicker to my eye. The 10.75x68, which Speed states are also thicker, look quite obviously thicker, to my eye. I would love to find an original Oberndorf 10.75x68 bottom metal.

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xausa
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: ColoradoMatt1]
      #335032 - 30/11/19 06:20 AM

Speed shows two factory lists of magazine dimensions. Neither of them mentions the 6.5X55. However, there is a simple way of determining if the magazine is original to the rifle. If it is, it will have the rifle's serial number stamped on the rear of the magazine.

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paradox_
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Re: Commercial Oberndorf 98 in 6,5x55 - info needed [Re: xausa]
      #335064 - 02/12/19 10:25 AM

Matt

You are correct on all fronts.
No rifles would have left the factory requiring " aftermarket" modifications in order for it to fit or function correctly. To suggest otherwise in my opinion is incorrect.
Each and every cartridge had the necessary factory modifications to the magazine box and followers to get correct function.
I dont have experience with the 6.5x55 , it may well be that this chambering sacrificed capacity and was not necessarily published.

No doubt Smiths who thought they knew better did fiddle with modifications.

My B type 9.3 is the same as yours Matt...and definatley a factory initiative.

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