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Ball powder vs. grain in the 30-378 wby

 
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Old 12-31-2002, 05:14 PM
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Ball powder vs. grain in the 30-378 wby

I am starting to develop loads for a 30-378 and I'm familar with the barrel errosion problems. I just wanted to know if a ball powder like H870 would be better about that then a grain powder like H50BMG? I believe I read something brief about that on this site but I can't seem to find it agian. Any replies would be appreciated.
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Old 01-01-2003, 11:01 AM
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Re: Ball powder vs. grain in the 30-378 wby

You might go to Accuratereloading.com and check out the reloading pages for some data. There was another website that had great info but, I can't remember it right now. You might also e mail barnes bullets--they have been and excellent tester of the 30-378. Also the hodgdon website may be good. If I remember right AA8700 is considered a good powder as is h5010, hodgdon bmg, and h4831.
Personally I hate ball powders for an application like this cause they burn so darn dirty compared to a stick powder.

Barnes data is pretty "warm" don't excede it!
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Old 01-01-2003, 01:54 PM
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Re: Ball powder vs. grain in the 30-378 wby

From what I remember,H870 is highly graphited and is real dirty, but it does a better job of not wearing out a barrel. Unlike H50BMG, and H5010, wich have burned out barrels in as little as 600 rounds. [img]images/icons/smile.gif[/img]
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Old 01-02-2003, 03:24 AM
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Re: Ball powder vs. grain in the 30-378 wby

It's all my brother uses in his 338/378wby, H870 that is. BEWARE, the new Barnes manual 30/378 data is missprinted, I think I found 165gr data duplicated number for number under the 180gr load. This manual is very dangerous and should be crossreferenced exstensively when used. I have found other duplications with other cartridges too, 06, 7mm, and others. Way whacked out loads on some as well.
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Old 01-02-2003, 06:41 PM
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Re: Ball powder vs. grain in the 30-378 wby

Before you work up loads using H870 you might be interested to know that Hodgdon has discontinued this powder a short while ago.
VH
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Old 01-03-2003, 07:07 AM
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Re: Ball powder vs. grain in the 30-378 wby

Cobra,
H1000 for 200's, RL25 for 220's has worked the best so far for me. Haven't given the H50bmg a fair enough try as I have only used a pound and a half of it so far. Cleanup isn't bad with any of these three. A point to remember is if you shot 600 rounds of the factory stuff it would be to the tune of $2,550. So to my way of thinking a barrel that lasts that long costs 5 times less per shot than the ammo to feed it. At least that is the explanation I am giving the wife when I do wash this one out. [img]images/icons/rolleyes.gif[/img]
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Old 01-03-2003, 04:12 PM
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Re: Ball powder vs. grain in the 30-378 wby

Fellows
Ball Powder such as H870 and WC 872 works fine in any large overbore case.
The wear factor is "MUCH" better then the large stick powder such as 5010. We found this out many years ago.

I know of one 30/378 owned by a LR hunter at Williamsport that was shot out in 400 rounds using the BIG stick stuff 5010 which is much like 50BMG.

I use nothing but the WC872 in any of my LR Hunting rigs and that includes the 6.5/300 Weatherby, 7mm Mag, 7/300 Weatherby Mag, any of the 30 Cal mags and improved 30s such as the 30 Goodling and 30 Bear, 30/378, 300 Tomahawk and of course the 338/416 Rigby Improved. I don't use Moly bullets in these rifles either.

I once took a rifle (30 Bear) to Bruce Baer to have the barrel set back because I thought I had enough rounds through the barrel to warrent a set back. After checking the bore he said I really didn't need to do that because it didn't have many rounds through the barrel.
He said that barrel couldn't have more the 500 rounds through it. When I told him it had near 2000 he couldn;t believe it. I only shot WC872 in that rifle.

Ball powder works for me and I get many rounds through a barrel before I have to rebarrel. It is heat sinsitive and seems to work best in hunting conditions and colder weather like 50 degrees and below.

If trying to shoot 1000 yard matches in "hot weather", ball powder seems to want to give you a flyer or two in a 10 shot string. Hence, heat sinsitive.

Chris
Glad to see your getting the results you are out of the H870 powder. I did use it in my rifles before switching to WC872. Works great in my Tomahawk. WC872 is just a tad slower. Not much though.

Later
DC [img]images/icons/smile.gif[/img]

The smell of burning gun powder makes me horney. So does diesel smoke. [img]images/icons/wink.gif[/img] [img]images/icons/shocked.gif[/img] [img]images/icons/grin.gif[/img]

[ 01-03-2003: Message edited by: Darryl Cassel ]
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