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Author Topic: 6.5 X 55 correct rim diameter???  (Read 483 times)

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Offline 270Handiman

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6.5 X 55 correct rim diameter???
« on: March 18, 2005, 04:31:49 AM »
Can anyone tell me the correct rim diameter for a swedish mauser m38.  I have heard that there is a variation between the military brass and our new domestic brass.  Can anyone shed any light on this subject?

Thanks,

270
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Offline jh45gun

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6.5 X 55 correct rim diameter???
« Reply #1 on: March 18, 2005, 08:16:09 AM »
The Hornady book list it as .476. I would guess there would be variations in brass as to who may make it. As long as it is close to standard a bit off one way or the other should not make any significant difference as I am sure there are tolerances built in for this situation. Jim
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Offline S.S.

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6.5 X 55 correct rim diameter???
« Reply #2 on: March 18, 2005, 08:21:53 AM »
There were slight differences from country to country,
several scandinavian countries used this round.
They have in the last 5 or 6 years standardized the
round as the 6.5 SKAN.
You will encounter several diameters.
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Offline Mikey

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6.5 X 55 correct rim diameter???
« Reply #3 on: March 19, 2005, 02:13:33 AM »
270handiman:  my Speer manula lists the rim diameter of the 6.5 Swede at .480.  HTH.  Mikey.
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Offline 270Handiman

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6.5 X 55 correct rim diameter???
« Reply #4 on: March 21, 2005, 03:43:40 AM »
Thanks guys!
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Offline muskeg13

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6.5 X 55 correct rim diameter???
« Reply #5 on: March 22, 2005, 09:54:40 PM »
Samples taken from my fired brass:
Federal .474
R-P .472-3
PMC .475-7
Norma .477
Lapua .478
Raufoss (Norwegian military 02-98) .478-9

I've gotten the best groups with the Lapua brass, but it's more expensive.
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Offline cvixx

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6.5 X 55 correct rim diameter???
« Reply #6 on: March 23, 2005, 04:16:25 AM »
A while back the American companies when American companies started making 6.5x55, for some reason they used the same base diameter as .308 oe 30-06, which is too small.  The fired cases developed a noticeable bulge at the base.  Supposedly they have corrected this problem.  

FWIW, 7.5 Frog is the same base diameter as Swedish round and 7.5 Swiss is larger still (why you can use .284 brass to make it).
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Offline R.W.Dale

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6.5 X 55 correct rim diameter???
« Reply #7 on: March 26, 2005, 02:35:21 AM »
Quote from: cvixx
A while back the American companies when American companies started making 6.5x55, for some reason they used the same base diameter as .308 oe 30-06, which is too small.  The fired cases developed a noticeable bulge at the base.  Supposedly they have corrected this problem.  

 Oh really I may need to replace my brass for my AG42B then. Where can I check up on this?
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