RichCoyle
Well-Known Member
Does anyone know the water capacity of a .338 RUM and then the .338RUM improved 40*?
Was there any difference between them in velocity?
Was there any difference between them in velocity?
.338 Rum and improved?
- Thread starter RichCoyle
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MagnumManiac
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Why the new join date Rich?
I can't help you, I ran the Edge with no changes, but see where you're coming from, an improved version with more room for seating depth is a very good idea.
Cheers.
I can't help you, I ran the Edge with no changes, but see where you're coming from, an improved version with more room for seating depth is a very good idea.
Cheers.
ADG 338 RUM 110.5 grains H2O, I'm guessing improved version 5-6 gr more?
MagnumManiac
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- Feb 25, 2008
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I doubt it would be even 5 grains to be honest, only going from 30° to 40° and very little case taper reduction.
Cheers.
Good point!
RichCoyle
Well-Known Member
Thanks, gentlemen. I am running a 7-.338RUM but using 7RUM brass to gain an extra .100" in neck length.
I have to trim after every firing otherwise the pressure goes up. I figured improved would eliminate that problem. At the same time, I was curious if the volume would change much.
I have to trim after every firing otherwise the pressure goes up. I figured improved would eliminate that problem. At the same time, I was curious if the volume would change much.
