30-378 weatherby

jonparbst

New Member
Joined
Feb 13, 2014
Messages
4
I am getting ready to start reloading for my weatherby 30-378, I am looking for any load advice you can give. I am also curious what you all think about primers, can different primers effect accuracy substantially? If so which are the best?
Thank you!
PS my rifle is a weatherby accumark
 

Dosh

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Aug 6, 2013
Messages
3,289
Location
Arizona
jp, check out forum member Broz's loads for 210, 215 and 230 Bergers for the 30/378 Wby. They are very good loads. I think he uses the 215M Federals. His 210 loads shoot so well in my 30/378 I haven't started with the 215's I have as yet. Good luck
 

shphtr

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Joined
Jul 7, 2006
Messages
216
Location
Alaska
I also am in the midst or load development for a 30-378 and would love to check out Broz's loads but do not know how to access them - link? email address? Thanx, [email protected]
 

Rich Coyle

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Aug 14, 2013
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4,121
Location
Grants Pass, Oregon
I used 118 grains of H870 behind a 180 Sierra about thirty-five years ago. The Federal 215 Magnum was developed for the .378 Weatherby to stop hang-fires during development of factory loads.
 

shphtr

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Jul 7, 2006
Messages
216
Location
Alaska
Thank you for the recommendation. I could be wrong, but it is my understanding H870 has not been made for a number of years.
 

shphtr

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Jul 7, 2006
Messages
216
Location
Alaska
I think I may still have a half pound or so somewhere that at least has to be 10 yrs old. Back when I did use H870 it did give excellent vel's but seemed to burn dirty. Have you tried any US869 or RL33?
 

Dosh

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Aug 6, 2013
Messages
3,289
Location
Arizona
shphtr, US869 was outstanding in my 30/378 as long as the temp was not over 72 or under 40. Too much temp sensitivity unfortunately.
 

dgarrett

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Joined
Dec 2, 2012
Messages
389
I used Bros's load when loading for my 30-378.. 210's or 215 Bergers are loaded at 3.810 OAL.. Fed 215m primer and 98gr of H1000. I only use the 215 Bergers now.These are fairly mild loads and very easy on the $70 per 20ct. Brass.. My 215 loads were 3008fps. and shot great...I prefer the Federal 215m Primers. Thats a big volume of powder to ignite. If you need to: you can sometimes find where you get pressure signs using the Federal 215m primer and use the same grain of powder with the CCI and get that load to work without pressure..Reloader 33 might very well be a good one to try with heavy Bullets. It works very well in my 338 Edge..Dave
 

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