ORIGINAL: Roskoe
Look at the ballistics charts. The point at which the bullet falls to the 2,000 fps impact velocity is effectively the maximum range.
If this was the case, The 30-30 wouldn't be any good at 100yrds.Along with 50 cal muzzle loaders. The bullet (energy) has more to do with effective kills rather than the speed velocity. Look at a 44. 1300 FPS. Many kill deer at a 100yrds easly with it. Then again, I am just starting to understand ballistics. Heres a chart from remington that's easy to read and compare ballistics.
http://www.remington.com/products/ammunition/ballistics/