I am having a problem finding a drawing of a
drawing of a 450#2. I am hoping some one could post post one. thanks Dave

CIP has a drawing.
A-Square's manual has a drawing.
They are different.

For example, CIP shows a Junction Cone angle for the shouder:
brass = 19deg19'36"
chamber= 20deg05'34"
That is about 10-degree shoulder angle.

A-Square drawing shows a 28-degree shoulder angle.

The base to shoulder distance by CIP is 2.850".
By A-Square it is 2.954".

CIP shoulder diameter: .550"
A-Square: .545"

CIP base diameter above rim: .565"
A-Square: .564"

CIP neck-1 = neck-2 = .482"
A-square neck-1 = .482"
A-Square neck-2 = .483"

CIP and A-square agree here:
brass max length: 3.500"

CIP rim thickness = 0.0800" (-.0098", minus tol.)
A-Square rim thickness = 0.0800"

CIP rim diameter = 0.6594"
A-Square = 0.660"

And so on ...

Read the A-Square manual Any Shot You Want, (C) 1996.
They call this cartridge the 450#2 N.E.

The 450 #2 N.E. was not CIP standardized until after Art Alphin did it first prior to 1996.
Art worked with Dave Manson when Dave was still at Clymer, to establish the specs, so it is claimed by author of that section of the manual, Terry Wieland.

Page 548 of that excellent book has the drawing:



CIP finally came out with their specs January 27, 1998. Those were revised May 15, 2002, which are quoted above.
They call it the 450 No. 2 N.E. 3"1/2 Eley.

Reckon the A-Square brass will chamber in a CIP spec chamber?

Same cartridge?
Various chambering specs may exist in all the antiques.

"Doin' good ain't got no end."

Thanks guys that explains my problem and hopefully solves it Dave

The cartridge has been around for near 100 years. CIP won't have it wrong. Take a look at Kynamco's site for a drawing to scale, no measurements, but will give you the shape.

JPK