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378 Weatherby Case Head dimensions

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Peter Gnanapragasam

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Nov 4, 2009, 8:49:07 PM11/4/09
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Hi:

Does anyone know what the detailed case head dimensions for the 378
Weatherby family are? Belt thickenss, ejector recess thickness base and
belt angle and such?

Thanks,
Peter


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Alex Cunningham

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Nov 5, 2009, 6:28:56 AM11/5/09
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#"Peter Gnanapragasam" <pet...@shaw.ca> wrote:
# Hi:
#
# Does anyone know what the detailed case head dimensions for the 378
# Weatherby family are? Belt thickenss, ejector recess thickness base and
# belt angle and such?
#
# Thanks,
# Peter
#
#

Here are the dimensions for the .378 Weatherby Magnum as listed in,
Handloaders Manual of Cartridge Conversions.
Case length 2.908"
Head Dia. .582"
Rim Dia. .582"
Neck Dia. .398"
Neck length. .370"
Shoulder length. .198"
Body angle (deg's/side) .298"
Loaded length. 3. 64"
Belt dia. .602"
Rim thickness. .063"
Shoulder dia. .560"
Length to shoulder. 2.34"
Case capacity (gr's water) 138.45
Case capacity (cc's) 8.97
Shoulder angle (deg side) n/a

If no factory cases available they can be made from .460 WEA brass by simply
annealing and resizing down in the 378 die then fire forming to blow out
the shoulders.

--
Cheers!
Alex.C
There are twelve million sheep in Ontario.
Problem is nine million of them think they are people.

T.Alan Kraus

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Nov 5, 2009, 6:28:58 AM11/5/09
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Peter Gnanapragasam wrote:
> ...
Belt diameter : .6035
Ejector diameter : .579
Base of cartridge to end of belt: .252

Cartridge is based on 416 Rigby

thats all I can contribute
cheers

Peter Gnanapragasam

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Nov 5, 2009, 5:42:41 PM11/5/09
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I do have the information regarding the general dimensions of the 378
family. However, what I am looking for are the following which corresponds
to CIP dimension notation standards ...

f (thickness of base foot)
E (height of base excluding belt)
delta angle (angle to belt from extractor notch)
beta angle (angle from rim to foot)
e min (minimum extractor grove thickness)

All the other dimensions are readily available.

Rubaiyat of Omar Bradley

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Nov 5, 2009, 5:42:47 PM11/5/09
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Here it is in pictorial form

http://stevespages.com/jpg/cd378weatherbymagnum.jpg

Martin H. Eastburn

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Nov 6, 2009, 5:17:44 AM11/6/09
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Speer manual - page 663

might try www.speer-bullets.com might be on line.

Just the shell and bullets. All the rest are rifle specs.

Martin

Peter Gnanapragasam

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Nov 6, 2009, 5:40:49 PM11/6/09
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Nope the manual does not have this info...

Martin H. Eastburn

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Nov 7, 2009, 7:57:11 AM11/7/09
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Maybe not your manual, but mine does. a #14.
Martin

Peter Gnanapragasam

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Nov 8, 2009, 5:56:15 PM11/8/09
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If you think that your manual provides this information which mine does not
why not enlighten me...
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