... to the bottom of the fuze and rest there, held by Artillery Through the Ages, by Albert Manucy 37 the spread wire, while the shell was in flight Upon impact, the plunger was thrown forward, the ... down to the bottom of the bore and marked the pick to show the depth Next he took the pick to the muzzle, stood it up in the bore, and marked the height of the muzzle The difference between the two ... for the base ring (which was higher than the vent), was the vivo A little wedge of the proper size, placed under the breech, would then eliminate the troublesome vivo Artillery Through the Ages, ...