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Anyone use a 8mm/RUM or 8mm/378 WBY

 
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  #8  
Old 11-04-2008, 05:52 AM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

I shoot my .300 Win Mag weekly, and also mess with my .325 WSM from time to time ( I load for both). Neither of which are in the same class as the big Roy cartridges. I have had some bench time with a .375 H&H, as well as Lightfield Slugs from a 3.5" 12 gauge, so recoil shy I'm not.

There is no way Id ever consider one of the .378 based cartridges without handloading. It just wouldn't be worth it, no matter how big of a smile it put on your face at the range.
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  #9  
Old 11-04-2008, 08:40 AM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

Quote:
Originally Posted by Tang View Post
I shoot my .300 Win Mag weekly, and also mess with my .325 WSM from time to time ( I load for both). Neither of which are in the same class as the big Roy cartridges. I have had some bench time with a .375 H&H, as well as Lightfield Slugs from a 3.5" 12 gauge, so recoil shy I'm not.

There is no way Id ever consider one of the .378 based cartridges without handloading. It just wouldn't be worth it, no matter how big of a smile it put on your face at the range.
I'd still recommend the 7mmSTW.

It's not a bohemoth, like a .416 Rigby...but it's a well known cartridge.

You can even buy Federal Premium ammo, pre-manufactured with 160gr. AccuBond bullets (BADD!!!!)

I'm planning on getting some of those AB's (AccuBonds) for my 7mmSTW!!!

I would seriously consider a 7mmSTW if I were in your shoes.

And YES...it does turn heads @ the firing range...people want to know what that "cannon" is used for?
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  #10  
Old 11-04-2008, 09:16 AM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

If you are going to do a wildcat, I would recommend that you base your cartridge on the 338 Lapua. Brass will take much more pressure than the other brass. Weatherby brass will not take much pressure, in fact Weatherby does not recommend reloading their brass. They consider it a one firing brass.

I agree with the prior post that the bullet selection for the .338 or .308 would be better.

If you are interested in a big overbore in a 30cal, I had a 30-338lap imp built last year. C H Tool and Die built my dies. Price was very reasonable, and now they have it on file.

One thing I would do differently next time is I will not get another tight neck. All the neck turning sucks.

I believe the Ultra mags would be a better choice than the Weatherby as well. Better, less expensive brass. I did the 30-378 and three firings on brass is not good when brass costs almost $100 per 20. If you do a Weatherby, do not push it.

This is just my opinion, and we all have one of those. So take it with all the others that are coming, shake them around and see what comes out. Good luck with your project.

Steve
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  #11  
Old 11-04-2008, 09:50 AM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

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Originally Posted by RockyMtnMT View Post
If you are going to do a wildcat, I would recommend that you base your cartridge on the 338 Lapua. Brass will take much more pressure than the other brass. Weatherby brass will not take much pressure, in fact Weatherby does not recommend reloading their brass. They consider it a one firing brass.

I agree with the prior post that the bullet selection for the .338 or .308 would be better.

If you are interested in a big overbore in a 30cal, I had a 30-338lap imp built last year. C H Tool and Die built my dies. Price was very reasonable, and now they have it on file.

One thing I would do differently next time is I will not get another tight neck. All the neck turning sucks.

I believe the Ultra mags would be a better choice than the Weatherby as well. Better, less expensive brass. I did the 30-378 and three firings on brass is not good when brass costs almost $100 per 20. If you do a Weatherby, do not push it.

This is just my opinion, and we all have one of those. So take it with all the others that are coming, shake them around and see what comes out. Good luck with your project.

Steve
I agree!

Steve knows his stuff!!!

Listen to him, and he'll guide you in the right direction.

He helped me make my decision on a new caliber for this year to hunt whitetial deer with...and I have never felt more assured in my choice of caliber, DESPITE the fact that I have NEVER owned or EVEN shot one before!!!

But I know he knows what he's talking about...so I'd recommend listening to his $0.02.
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  #12  
Old 11-04-2008, 11:37 AM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

Quote:
Originally Posted by RockyMtnMT View Post
If you are going to do a wildcat, I would recommend that you base your cartridge on the 338 Lapua. Brass will take much more pressure than the other brass. Weatherby brass will not take much pressure, in fact Weatherby does not recommend reloading their brass. They consider it a one firing brass.Steve
I think I RESPECTFULLY disagree with this statement. I do agree that Lapua brass is the best on the planet, along side RWS. But Norma brass is a close second, and FAR superior to the rem, win, fed, ect.... brass that is out there.

And as far as Weatherby/ Norma not recomending reloading their brass....imagin this.

A hotshot lawyer who loves to hunt, decides that the economy is bad, and decides to handload. Obviously Court (that is his name in our little story) shoots only the finest Weatherby Lazermark rifle. He grabs up his used weatherby brass (or buys new brass) and starts loading.

Now Court is real book smart, but as far as common sence.....not so much!!! Court looks at his shiny new reloading book (book smart, remember) and proclames.."I will shoot 79 G of RL 25 behind 180 NBT". Or what ever. He goes to the store and picks up his new stuff, but they are out of RL25. Being a man, who HATES to ask questions for fear of looking dumb, grabs a pound of RL 7 instead.


BANG...............

Now, two years later, Lefty (he changed his name because he lost his right eye and hand in the accident) sees somwhere on the internet where someone says that Weatherby/Norma does not recomend reloading their brass.


HE CHANGES HIS NAME BACK TO COURT!!! :mad:

I just don't believe that this is true.

Like I said , I RESPECTFULLY disagree with you, and I won't get in a ******* match, or demand you proove your statement. Just not my way.
But, most of the guys I compete with use Norma if Lapua isn't available.
I use it in my 300 WBY 1K comp gun and have gotten 6x out of them so far, and see no reason why I won't get another 6. I just need to learn how to anneal the necks.

Last edited by 4xforfun; 11-04-2008 at 04:46 PM.
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  #13  
Old 11-04-2008, 01:02 PM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

I have NEVER heard Weatherby recommending not to reloading their brass, if it is true, I would agree it is because of some dirtbag attorney.

I have been reloading 300 Wby's for over 20 years. Weatherby brass is excellent brass, not as good as the Lapua, but very good.

The 300 and 30-378 have both held numerous 1000 yard world records. When the 338 Lapua does this I will give it credit. I believe both of the Weatherby's are inherently more accurate than the 338's. This could change with the better 338 bullets.

I get 5-7 reloads out of my 300 Why brass pushing 210 Berger's at 3000 fps, ES of around 15 fps and honest .25-.35 MOA for an Average at 100 yards. .5-.6 MOA for an average in field conditions (off a bipod) out to 900 yards
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Last edited by Marine sniper; 11-04-2008 at 02:03 PM.
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  #14  
Old 11-04-2008, 01:59 PM
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Re: Anyone use a 8mm/RUM or 8mm/378 WBY

Thanks for all the replies. I looked at the 7 STW before when I had a 7mm Rem Mag, but at the time didnt see any need for two 7's. Isnt the 7 RUM a step up from the STW ?
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