field gun

The enemy had gotten a field-gun down to the shore and with it they began to throw three-inch shells at the Chicken.

"Let us have a look at the field-gun," said Sypher encouragingly.

Neither of them had ever seen a field-gun or a rifle, and consequently they were absolutely ignorant of the effect of such things.

I had left him and was fifty yards or so away when a field-gun shell burst close to the stretcher.