340 Weatherby Brass

[rml30378]

I'm in the process building a 340 and looking for brass option other than Weatherby's. I see that Bertram has 340 available to pre-order. I've never used any from them , is it any good for the money? My second option that I'm leaning towards is necking up 300 WBY Peterson brass when it comes back on market. I use enough of Peterson to now its good stuff. My question is , is the cheaper Bertram a better buy from people that used it?
Thanks

 

[rml30378]

Any Bertram feedback?

 

[Dr. Vette]

You don't like Weatherby brass due to price? Availability? Other issues.

 

[rml30378]

Weatherby brass primer pockets get loose to fast for me. Over time I have moved away from their brass in calibers I own for this reason.
257 WBY - fire formed Winchester (blue bag) 7 mm Rem Mag brass
300 WBY - Remington brass
30-378 - Hornady and Nosler brass
378 WBY - Jamison 500 Basic
416 WBY - Jamison 500 Basic
460 WBY - Norma and Jamison 500 Basic
My average on Weatherby brass was 4 firings some of these above are at 6 and still good as new.
Just looking for a quality substitute.

 

[Double Dropper]

7mm mag brass to 257 Weatherby?? Thats a stretch LOL how did you clean up the necks?

Weatherby brass primer pockets get loose to fast for me. Over time I have moved away from their brass in calibers I own for this reason.
257 WBY - fire formed Winchester (blue bag) 7 mm Rem Mag brass
300 WBY - Remington brass
30-378 - Hornady and Nosler brass
378 WBY - Jamison 500 Basic
416 WBY - Jamison 500 Basic
460 WBY - Norma and Jamison 500 Basic
My average on Weatherby brass was 4 firings some of these above are at 6 and still good as new.
Just looking for a quality substitute.

7mm

 

[JMW67]

If the headstamp does not matter to you I would use the Peterson in my experience it is far superior to Bertram

 

[rml30378]

There is no need to clean up necks. Once through the FL die gave me 0.0125" thickness. That being said I would never use the current offering from Winchester , now that better quality brass is available. The only draw back is the brass is short by about 0.045"-0.050".
I did go ahead and ordered the Bretram brass , I hope it wasn't a mistake.

 

[Elk Hunter 338]

like you said peterson is making 300 weatherby brass .. run through your expander and send it!! dont use bertram

 

[rml30378]

I gave up waiting on Graf to get it in stock and ordered Bertram. Today I see Graf has it in stock. Some days I can't win.

 

[Elk Hunter 338]

im the same but you couldn't give me bertram brass

 

[MagnumManiac]

I have made all of my full length Weatherby chamberings from 375H&H brass, just simply neck it and fire form with COW.
I have a few hundred of Remington 300 Weatherby cases I picked up cheap from factory loads about 25 years ago now.
Still haven't used a 1/3 of it yet.
Headstamp difference doesn't bother me at all.
My only experience with Bertram wasn't a good one, but that was a long time ago now.

Cheers.

 

[cgarb]

I have necked up and down either 375 H&H or 8mm Rem Mag with good results. The internal capacity of that brass vs Weatherby brass is different so tailor your load data accordingly.