CHAPTER XXXI.

RECIPES FOR BROWNING 249

Thirteen Recipes for Plain Barrels 249

Four Recipes for Twist Barrels 252

To Blue Gun Barrels 252

Brown Tint for Iron or Steel 253

Transparent Blue for Iron or Steel 253

Varnish for Browned Barrels, Three Recipes 253

Finish for Browned Barrels 254

To Remove Old Browning 254

The gunsmith's manual · 第 31 / 45 章