Assertion: gunpowder's use | /r/HasSubevent | problem
Facets:
Source sentences:
text: The use of a lead bullet can also lead to a problem known as “leading”, in which friction between the bullet and barrel results in the transfer of metal to the barrel, ultimately causing less accuracy.
text: You are welcome to contribute to wikpedia, but the use of Encyclopedia Britannica 2008 as a source of information, particularly in the case of Gunpowder and the History of gunpowder will lead to problems - some of the information appears unreliable.