Blank .995 diameter by .05 thickness.

Cupping. 1st process.

1st re-draw. 2nd process.

2nd re-draw. 3rd process.

Heading. 4th process.

Outside diameter of shell....................................

•593

•498

•407

•410

Inside diameter of shell..........................................

.496

•407

•221

•322

Reduction in shell thickness...............................

•0015

•003

•0025

nil

Length in shell thickness..............................

•387

•490

•630

•493

Thickness of shell..............................................

•0485

•0455

•043

•044

Blank .613 in diameter by .051 in thickness.

Cupping. 1st process.

Extension. 2nd process.

Extension. 3rd process.

Extension. 4 th process.

Extension. 5th process.

Outside diameter of shell

•415

•368

•335

•313

•293

Inside diameter of shell

•341

•324

•299

•285

•269

Thickness of metal in shell

•037

•022

•018

•014

•012

Reduction in thickness of metal in shell

•014

•015

•004

•004

•002

Length of shell

•275

•501

•604

•902

1.028

Reduction in outside diameter

..

•047

•033

•022

•02

Difference in outside and inside diameter

•074

•044

•036

•028

•024

Increase in length of shell at each process

••

•226

•103

•298

•126