Double rifle barrel profiles?

Calling all forum double rifle owners

I have finished my mono block for a 45-70 double rifle
And ready to get on to the barrels
But I don't have any hard data to base the barrel profiles on !

I'm planning on about 24" / 600mm long barrels
It's 1"/ 25mm diameter at the end of the mono block

Does anyone have a double rifle that they could measure the barrel diameters at multiple points along their lengths to give me an idea where I'm going?

Or know of a web site with anything like this ?

Cheers

Don't know if this will help, but it might lead to some other posts that will help you

Forums.NitroExpress.com

I’ve got a 470NE Merkel, let me know what measurements you need


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Outside diameter at muzzle: 18mm
OD at tip of fore end: 19.6mm
OD at breach: 25mm


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