7.5x55 Swiss
- Thread starter dak0ta
- Start date
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Beak50
Member
I have looked for that myself and have come up empty.The closest thing is Hornady I think sst 150gr.I figure it must be the powder in the GP-11 cartridge.
madcratebuilder
Member
Ask at the K31 forum at Gunboards.com or swissrifle.com.
CooterShooter
Member
- Joined
- Jan 28, 2012
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- 28
http://en.wikipedia.org/wiki/7.5×55mm_Swiss
There might be some helpfull information if you scroll down to the chart titled "Variants Overview"
But I honestly have no clue.
A lot more data here.
There might be some helpfull information if you scroll down to the chart titled "Variants Overview"
But I honestly have no clue.
A lot more data here.
Last edited:
Heck if I know an "official load".
I conducted some load development for the 7.5 Swiss. I was given Swiss ball to shoot, pictures of the ammunition below.
Notice that the bullet is greased. According to Gen Hatcher's Notebook, grease raises pressures "dangerously". I think that claim is bogus as evidenced by Swiss service ammunition.
AA4350 gave excellent accuracy and just about duplicates Ball velocities with 51.0 grains and a 168 Nosler Match bullet. As you can see 52.0 grains produced velocities over Ball, so I do not recommend that load. It is here for reference.
Instead of AA4350 I am shooting surplus WC852 in the 7.5 Swiss. This is a ball powder, and I purchased my lot from Jeff Barlett at GIBrass.com . It turns out Accurate Arms purchased a 90,000 pound lot of WC852, faster burning than Jeff’s lot, and now it is labeled as 2700. My lot of WC852 shoots extremely well, was dirt cheap, and I am using that up. But if I did not have the surplus powder, I would give IMR4350 or AA4350 a go as it shot very well.
I conducted some load development for the 7.5 Swiss. I was given Swiss ball to shoot, pictures of the ammunition below.
Notice that the bullet is greased. According to Gen Hatcher's Notebook, grease raises pressures "dangerously". I think that claim is bogus as evidenced by Swiss service ammunition.
AA4350 gave excellent accuracy and just about duplicates Ball velocities with 51.0 grains and a 168 Nosler Match bullet. As you can see 52.0 grains produced velocities over Ball, so I do not recommend that load. It is here for reference.
Instead of AA4350 I am shooting surplus WC852 in the 7.5 Swiss. This is a ball powder, and I purchased my lot from Jeff Barlett at GIBrass.com . It turns out Accurate Arms purchased a 90,000 pound lot of WC852, faster burning than Jeff’s lot, and now it is labeled as 2700. My lot of WC852 shoots extremely well, was dirt cheap, and I am using that up. But if I did not have the surplus powder, I would give IMR4350 or AA4350 a go as it shot very well.
Code:
[SIZE="3"][B]7.5 x 55 Swiss Model K-31 [/B]AP11 Swiss Ball headstamp DA 78
24 Mar 04 T = 70 ° F
Ave Vel = 2565
Std Dev = 11
ES = 23
Low = 2551
High = 2574
N= 4
168 gr Nosler Match 51.0 gr AA4350 INDEP brass and primer OAL 2.850
22 Dec 01 T = 58 ° F
Ave Vel = 2536
Std Dev = 17
ES = 45
Low = 2510
High = 2555
N= 9
168 gr Nosler Match 52.0 gr AA4350 INDEP brass and primer OAL 2.850
22 Dec 01 T = 58 ° F
Ave Vel = 2624
Std Dev = 31
ES = 72
Low = 2588
High = 2660
N=5[/SIZE]- Status
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