View Effective Range 17 Hmr Background. As you can see from the chart below the.17 hrm really takes a nose dive at about the 250 yard marker, as compared to the.223 a larger round (also a varmint round). Find out all about this handy cartridge, what it does, why you'd want one, the best ammo, and our favorite guns.
Their maximum effective range is 10 yards.
It's the perfect combination for hunting varmints or shooting at the range. .17 hornady magnum rimfire, commonly known as the.17 hmr, is a rimfire rifle cartridge developed by littleman in 2002. I'm thinking about getting a.17 hmr and can't find a honest answer for the effective range for one. They are essentially drilled and tapped at the top of the barrel.