Runner said:As the balls get into the large end of the range, you don't need anywhere near 1800 FPS to do the job on deer. A .690 ball at 1200 FPS will plow right on thru most deer that ever lived and the one behind it too! Don't get hung up on the velocity thing. Hunting results with soft lead roundball do not translate into energy descriptions that modern shooters are familiar with very well.
I believe that to be true also and was my main reason for building the .58cal. Berk's Co. I now use. I figured it would do for anything I would hunt..mostley deer and hogs..and my reasoning for the harder ball is..using 100grs. of ffg and a 570 or 562 ball, if it don't do anything but go through it will be a good hole to bleed coming out.