weatherby 30-378 mag?

bharrison_06

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So is how far out is the 30-378 weatherby mag round good for?? Is it goin to be a better round than the 338 lapua?
 

matchking

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Re: weatherby 30-378 mag?

I am not sure what the barrel life is on a .338 Lapua, but the Weatherby leaves alot to be desired in the longevity category. With that said, as a hunting round in a rifle that won't be fired a ton, it is a goog choice.
 

bharrison_06

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Re: weatherby 30-378 mag?

o ok well i am thinking about it as a long range rifle. I have a Remington 700 with 20'' 1 -12 bull 308 win. an a 50bmg rifle to but im lookin into a another rifle . The 338 lapua or the 416 barrett is what im looking into now
 

tigerhawk

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Re: weatherby 30-378 mag?

For long range target use, I would get the .338 Lapua, unless it is easier for you to find ammo for the .416 Barrett, which I suspect it will not be.
 

brand692

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Re: weatherby 30-378 mag?

Go with the 338LM.

The 30-378 is a spectacular round. It does so many things VERY well such as:

Trashes barrels and throats.
Tears up your shoulder.
Destroys checking accounts.
Burns up powder.

But oooooohhhhhh is it fast.

Take it from a guy who is having a 338LM built because he has a 30-378.

When people complain about the cost to shoot a 338LM, consider this.

A 20 round box of brass for a 30-378 is $70.
A 100 round count of quality heavy 30 cal projectiles are $40.
It uses about 100-110grains of powder per trigger pull. 7000 grains in a pound. A pound of Retumbo is $30.
A brick of 1000 primers are 50 bucks. $.05 each.

So to load 100 30-378's, mathematically, you are looking at $350 in brass, $40 in bullets, $5 in primers, and 1.5 lbs of pound, but you can't buy half pounds, so 2lbs of powder, at a cost of $60 dollars. <span style="font-weight: bold">Total for 100 hand loaded rounds of 30-378 comes to $455 dollars, if you hand load.</span> If you are going to buy it, you are at $650.

338LM brass is $250/100, bullets (300SMK) $32/50, Primers $.05 and they use about 90grains of powder. <span style="font-weight: bold">Total for 100 hand loaded 338LM rounds you are looking at $379.</span> If buying it, between $605 and $640.

Add in that a 30-378 barrel only lasts, at most, 800 rounds, and the 338LM lasts 2000 rounds. So you will need THREE 30-378 barrels to last as long as one 338LM magnum barrel. At $300 for a barrel and $300 for an install, you are at 600/barrel.

<span style="font-weight: bold"><span style="font-size: 14pt">That means over the course of 2,000 rounds, you will have a total cost of about $10,900 into a 30-378 and $8,200 in a 338LM, not taking into account the cost to replace brass. </span></span> <span style="font-style: italic">(and people complain about the price of an AW...)</span>

The 338LM is more financially viable, has better ballistics, better components available-specifically brass, and you won't have to have the rifle rebarreled OVER and OVER and OVER. The 338 wins. Hands down.

But if you want to shoot 30 cal bullets really fast, get a 30-378. After all its just money, and you can make more next week.
 

hoguer

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Jan 26, 2009
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Re: weatherby 30-378 mag?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: brand692</div><div class="ubbcode-body">
Add in that a 30-378 barrel only lasts, at most, <span style="font-weight: bold">800 rounds, and the 338LM lasts 2000 rounds. So you will need FOUR 30-378 barrels to last as long as one 338LM magnum barrel</span> </div></div>

lol. I know im pretty bad at math, but 800x4=3200.... so you will actually use more like 2.5 barrels to get that magic 2000 number you are working with....

So actual operating cost is now reduced from $11,500 to $10,000 even! I just saved you $1500 bucks!

Just crunching numbers here!
 

brand692

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Re: weatherby 30-378 mag?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ffhogue</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: brand692</div><div class="ubbcode-body">
Add in that a 30-378 barrel only lasts, at most, <span style="font-weight: bold">800 rounds, and the 338LM lasts 2000 rounds. So you will need FOUR 30-378 barrels to last as long as one 338LM magnum barrel</span> </div></div>

lol. I know im pretty bad at math, but 800x4=3200.... so you will actually use more like 2.5 barrels to get that magic 2000 number you are working with....

So actual operating cost is now reduced from $11,500 to $10,000 even! I just saved you $1500 bucks!

Just crunching numbers here! </div></div>

Whoops! Caught red handed. Bad math indeed. But, to be completely honest, 800 rounds out of a 30-378 Weatherby is actually over estimating it. It will more than likely need to be set back or replaced at 600. But you are correct, bad math!

But since there is no such thing as .5 barrels, I call it at three barrels, which saves only 600 bucks.

I'll edit the post to fix it. Thanks!
 

shoots100

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Re: weatherby 30-378 mag?

338 lapua without a doubt.Cost is irrelivent,but learn from me.I tried to make a 30-378 as accurate as some of my other rifles and was very dissappointed in the results.I had to try.The fact is that it's a big case with a little hole.Alot of recoil,but not alot of accuracy.Good enough accuracy for a hunting round,but there are alot better calibers out there that won't kick the crap out of you and give you the same results.
STEVE
 

brand692

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Oct 22, 2009
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Re: weatherby 30-378 mag?

The key to making a 30-378 accurate is NOT using a Weatherby Action. It uses the same BF as the 338LM. Mine is built on a 700LA.

During fireforming, it shot a .609 five shot 300 yard group. And that is not MOA, it is the actual measurement.

It can be done, and you can have a tack driving overbored 30.

But the 338LM still wins in all practicality departments.