30 378 weatherby

[maddy]

with the 245 grain berger bullets what would you load for powder and what velocity out of a 30 inch barrel

 

[SheepSeeker]

RL 33, Retumbo or H869

 

[Dosh]

The 245gr Berger needs a minimum 1:9 twist. If you have a factory Wby barrel it's a 1:10.

 

[ann brezinski]

rifle is a custom with a 1/10 hart barrel.so i will not be shooting them then

 

[Dosh]

Thought the OP was "maddy"?

 

[Slick8]

I say try them in the 10 twist. If they don't work, i can tell you the 230s will work fine in a 10 twist barrel. The speed you'll see from a 378 case at 30 inches may be enough to compensate for the lack of twist. Perhaps at worst you'll lose a little bc.

 

[asd9055]

The 245gr Berger needs a minimum 1:9 twist. If you have a factory Wby barrel it's a 1:10.

Is that what Berger recommends? Because in general, in a 338 caliber, 1:10 should be good to 300 grns

 

[asd9055]

Is that what Berger recommends? Because in general, in a 338 caliber, 1:10 should be good to 300 grns

Berger stability calculator says 1:10 is good

 

[Dosh]

Berger stability calculator says 1:10 is good

From the Berger site under specifications for the .30 cal 245 EOL bullet states minimum twist 1:9 or faster.

 

[asd9055]

From the Berger site under specifications for the .30 cal 245 EOL bullet states minimum twist 1:9 or faster.

My mistake. I was looking at 338-378..

 

[Dosh]

My mistake. I was looking at 338-378..

Thank you, I was about to make an appointment for an eye exam. At $60 per 100, would be a bit pricey for most to load some to test.

 

[asd9055]

Thank you, I was about to make an appointment for an eye exam. At $60 per 100, would be a bit pricey for most to load some to test.

I need new glasses...just can't afford them now...

 

[Longrangers]

rifle is a custom with a 1/10 hart barrel.so i will not be shooting them then

Don't over look h50 powder. My 30/378 shoots it well with 230's

 

[GCarlton53]

Theoretically, what if someone wanted to shoot 160s out of it, which powder and twist? With a goal of 3600 to 3700fps