According to Mr. Nathan Foster, which statement is true regarding new barrels?

The correct statement regarding new barrels is that they may have burrs in the bore. When a barrel is manufactured, the machining process can leave behind small imperfections, known as burrs, within the bore. These burrs can affect the performance and accuracy of the barrel, potentially leading to inconsistent shots. As such, it’s important for users to inspect and possibly address these burrs before using the barrel for shooting.

The other statements do not accurately reflect the considerations necessary for new barrels. While it may seem convenient to think that new barrels are perfect and do not require care, they often do need some level of attention. Cleaning before use is a best practice to remove any residual machining oils or debris, but it's not as specifically tied to the concern about burrs as the correct answer is.