Assertion: mammoth powder | /r/HasProperty | made for rodman's 15-inch cannon
Facets:
Source sentences:
text: Mammoth powder with large grains, made for Rodman's 15-inch cannon, reduced the pressure to only 20 percent as high as ordinary cannon powder would have produced.
text: Mammoth powder with large grains, made for Rodman's 15-inch cannon, reduced the pressure to only 20 percent as high as ordinary cannon powder would have produced.