Thread: 7-300wsm load data

Hey all. Who had some load data for a 7-300wsm? @tui_man2 did tell me what data to use but I've forgotten and lost the message.
My gut feeling is use 300wsm.

It's reamed for 180gr bergers.
And I will be using adi powders for a start, 2217, 2225 and possibly 2213sc.

Cheers kyle

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Without trying to derail this too much, whats the difference from this to a 7mmwsm?

@Toby
Basically just a slightly longer neck and slightly less capacity because of the resized brass.

Try this puku:

http://www.6mmbr.com/7mm284.html

Originally Posted by Matt2308

@Toby
Basically just a slightly longer neck and slightly less capacity because of the resized brass.

Yep pretty much. Longer neck which helps prevent throat erosion, and aids with projectile alignment.

The case of the 300 270 wsm's have a slightly shorter case than the 7mm wsm. It was fine so you couldn't load a 7mm wsm bullet into a 270wsm Chamber

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Superformance powder might be worth a nudge goes
Well in 300 wsm

Also @Toby you can only get Winchester brass in 7wsm, where as you can get Norma in 270 and 300wsm

I would try 7mm SAUM data if you can't find 7/300WSM data. Look on 6mmbr.com there have been a couple featured in the guns of the week and also on the 7mm page there

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Originally Posted by puku

Also @Toby you can only get Winchester brass in 7wsm, where as you can get Norma in 270 and 300wsm

Not true. Nosler do it as well but it's mental expensive and hard to find.

Originally Posted by Proudkiwi

Not true. Nosler do it as well but it's mental expensive and hard to find.

Are they not made at the same place? Or have I got my bearings wrong..

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Nah, you're thinking of Norma not Winchester.....I think