Swiss K-31 - Page 2 - Graybeard Outdoors
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post #11 of 21 (permalink) Old 05-13-2019, 03:40 PM
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Originally Posted by goodshot View Post
Just getting a few new rounds to build up brass, will be watching for dies at the gun shows.
PPU brass from Serbia is what I can find locally, have you seen any boxer primed military brass?

No, I've not seen any boxer primed military brass.
Military ammo was (maybe still is) made by the Swiss company RUAG.
My understanding is that it was berdan-primed yet non-corrosive.


I've never shot anything but reloads in my rifle.
I started out reforming 284 Win cases.
When G&Sons started offering cases I bought these new and never looked back.
Even though mine have the GRAF head stamp, I think they were made by Prvi Partizan.

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post #12 of 21 (permalink) Old 05-15-2019, 08:47 PM
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They are the most accurate issue military rifle I've ever fired. Only the 96 Swede was close.

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post #13 of 21 (permalink) Old 05-15-2019, 10:38 PM
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They are the most accurate issue military rifle I've ever fired. Only the 96 Swede was close.

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my 308 shoots tight also also why the barrel is orginal 306/307 and 308 bullets fits a little more tigher in the rifling

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Bullet diameter 7.78 mm (0.306 in)
https://en.wikipedia.org/wiki/7.5×55mm_Swiss

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post #14 of 21 (permalink) Old 05-15-2019, 10:42 PM
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btw i under charge all my 308 reloads keeing the press in the 40,000 to 48,000 chamber pressure
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post #15 of 21 (permalink) Old 05-16-2019, 09:02 AM
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They are the most accurate issue military rifle I've ever fired. Only the 96 Swede was close.

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Rush,


My best accuracy was with IMR-4350, CCI-200-LRs and Sierra GKs at 2.925 COL


.

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post #16 of 21 (permalink) Old 05-16-2019, 09:12 AM
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Originally Posted by Rushcreek View Post
They are the most accurate issue military rifle I've ever fired. Only the 96 Swede was close.

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PS: The Swede M96 is accurate. I always wondered how the 1903A3 would do vs the Swiss K31.


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post #17 of 21 (permalink) Old 05-16-2019, 10:01 AM
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Rush,


My best accuracy was with IMR-4350, CCI-200-LRs and Sierra GKs at 2.925 COL


.
suprising that 4350 has a slow burn rate
https://loaddata.com/articles/PDF/Bu...rt%20(New).pdf
just under reloader 17
humm i see what you mean now but for heavier bullets
https://www.ammoland.com/2016/04/rel...#axzz5o61xxNq2
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4350 reloading powders will do a good job especially with the lighter bullets. With heavy bullets it will work, but there are better choices. With a couple of the larger surplus rounds such as the 7.5 X 55 Swiss and the 7.62 X 54 Russian 4350 is a good choice with the heavier bullets

Last edited by sagia308; 05-16-2019 at 10:04 AM.
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post #18 of 21 (permalink) Old 05-16-2019, 10:07 AM
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4350 only best for 178 slugs i see
https://www.tapatalk.com/groups/thes...les-t9041.html
using 165 gr bullets i would go with 4064
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post #19 of 21 (permalink) Old 05-16-2019, 03:26 PM
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Yes my bullet of choice for my rifle was and is the 180 SGKs.
Early on I went with the 165 SGK thinking at that short 2.925" COL,
I would get better performance by "saving" some case capacity with the 165.
Latter I returned to the 180 and have been happy with its performance.

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post #20 of 21 (permalink) Old 05-16-2019, 06:43 PM
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1903 vs K31. I have never benched the two together, Perhaps I will this weekend. Years ago I fired my first ever MOA group (five shots at 100 yards, benched) with a 1903 using the ladder sight; the load was 53 grains of IMR 4831 and a 165 grain Remington PSP.
I use the same load with Graf's brass in the K31. The K31 has a scope on it, maybe that will make the shooting a bit easier.
Hope that I get the time to do it.

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