According to my bullet-dating research at the Cartridge Collector website, and elsewhere, the earliest date for a bullet having tiny multiple parallel ridges in a body-groove (which known as a reeded groove or a knurled cannelure) is 1877. Also, your bullet shows the white-ish patina of "pure" lead, rather than the thin greyish patina of hardened-lead, which had mostly superceded pure-lead bullets by the 1890s. So, I think your bullet can be from before the 20th Century. But to ID it correctly, we need you to measure its diameter super-pricisely, by using a Digital Caliper, which tells measurements in hundredths or thousandths-of-an-inch, and post that information.