Best Brass for 30-378?

[LONGSHOOTER]

How many "yards" more efficient?

It seems to me that this cartridge is just begging for a heavy, high BC, accurate, bore riding bullet to really make it shine.

Perhaps 250-260 grains.

 

[seidersjoden]

Broz,

The reamer they will use on my gun is from Pacific Tool & Guage: 30-378 Weatherby Magnum Live Pilot Finisher [283641] - $147.00 : Pacific Tool & Gauge, Inc. - Store Home, Redefining Quality in Manufacturing


They said it was going to be a freebore with a little room to play with seating lengths.

The rep at GAPrecision reccommended the comment below. This because the bullet might be to long for the Accuracy International CIP magazine but from what I understand the loads for this caliber seem to be more accurate with a shalower seating depth, what is your OAL when you load the 230's for your 30-378?

This is what the rep said:
"Consider loading to 3.745 max OAL, that will give a little space for variance in bullet meplats and ogives".

Thanks

 

[Broz]

Perhaps 250-260 grains.

Who makes those in 30 cal?

 

[Broz]

Start with 90 gr of H-1000 and work up. Watch for accuracy and pressure. Look for an accuracy node around 94 gr if the rifles, freebore, and powder lot allows you to get there.

Seat them at 3.790" to start OAL case head to tip of bullet.

That is as close as I can get you with out the rifle or knowing the mag box dimensions.

Jeff

 

[seidersjoden]

Awesome, thanks for the help Jeff! When start playing with the load after I get my gun I might have some more questions for you.

 

[LONGSHOOTER]

Broz,

Who made the 230 Bergers, before Berger started making them?

Think!

I was saying we needed a 227 grain high BC 30 before Berger made the 230s.

I am saying we can go the extra step for the 30-378 also. The 30-378 should be using heavier bullets than the 300 WM.

 

[500mag_guy]

Nosler makes 30-378 wby mag also.

 

[Broz]

broz,

who made the 230 bergers, before berger started making them?

Think!

I was saying we needed a 227 grain high bc 30 before berger made the 230s.

I am saying we can go the extra step for the 30-378 also. The 30-378 should be using heavier bullets than the 300 wm.

You think, why do you suppose no one makes them??

Never mind dude. Sorry I blew up...

Jeff


.

 

[LONGSHOOTER]

You think, why do you suppose no one makes them??

Never mind dude. Sorry I blew up...

Jeff


.

Nobody makes them, correct. Doesn't mean they can't.

Berger didn't have the 230 until recently.

The 30-378 with light bullets is no improvement over the 300 WM.

The 30-378 is a niche cartridge. But, it does have undeveloped potential.