Help with lost data

Reloading equipment, methods, load data, powder and projectile information.

Help with lost data

Post by Pk58 » 03 Aug 2026, 1:50 pm

Any help will be appreciated.
I’ve picked up some Vihtavuori n330 powder and not sure where to start with the load data.
I’m unsure when it comes with the projectile I’m using.
This is my projectile
* Calibre: 9mm / .38 Super
* Weight: 125 grain (125g)
* Shape: Conical (CN)
* Base: Bevel Base (BB)
* Diameter Size: .356 inches
* Material / Coating: Hard-cast virgin lead alloy with a tough polymer/Hi-Tek style thermal coating
My gun is 9mm Cz shadow 2
Thank you
Pk58
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Re: Help with lost data

Post by No1Mk3 » 03 Aug 2026, 2:31 pm

Start with bullet weight and type (lead, jacketed or coated), for coated use jacketed data. That's it, nothing else matters. Vihtavuori website offers data for their powders, listing 8.0g (125gr) bullets and N330 as starting 0.28gr to MAX 0.32gr for 347m/s (1137fps)
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Re: Help with lost data

Post by bladeracer » 03 Aug 2026, 2:34 pm

Pk58 wrote:Any help will be appreciated.
I’ve picked up some Vihtavuori n330 powder and not sure where to start with the load data.
I’m unsure when it comes with the projectile I’m using.
This is my projectile
* Calibre: 9mm / .38 Super
* Weight: 125 grain (125g)
* Shape: Conical (CN)
* Base: Bevel Base (BB)
* Diameter Size: .356 inches
* Material / Coating: Hard-cast virgin lead alloy with a tough polymer/Hi-Tek style thermal coating
My gun is 9mm Cz shadow 2
Thank you


N330 is very close to APS350 I think. I would load a round with 3.3gn and fire it through the chronograph to to see if it cycles the pistol. Then adjust from there.
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Re: Help with lost data

Post by Pk58 » 03 Aug 2026, 4:11 pm

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No1Mk3 wrote:Start with bullet weight and type (lead, jacketed or coated), for coated use jacketed data. That's it, nothing else matters. Vihtavuori website offers data for their powders, listing 8.0g (125gr) bullets and N330 as starting 0.28gr to MAX 0.32gr for 347m/s (1137fps)


Thank you that’s what I thought just was not sure
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Re: Help with lost data

Post by Pk58 » 03 Aug 2026, 4:12 pm

bladeracer wrote:
Pk58 wrote:Any help will be appreciated.
I’ve picked up some Vihtavuori n330 powder and not sure where to start with the load data.
I’m unsure when it comes with the projectile I’m using.
This is my projectile
* Calibre: 9mm / .38 Super
* Weight: 125 grain (125g)
* Shape: Conical (CN)
* Base: Bevel Base (BB)
* Diameter Size: .356 inches
* Material / Coating: Hard-cast virgin lead alloy with a tough polymer/Hi-Tek style thermal coating
My gun is 9mm Cz shadow 2
Thank you


N330 is very close to APS350 I think. I would load a round with 3.3gn and fire it through the chronograph to to see if it cycles the pistol. Then adjust from there.

Cheers appreciate your help
Pk58
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