500 Nitro,

Yes, one shot kills are just fine, but any halfway passing and lots of poor shots will be one shot kills too - its just a matter of time. I like Sureshot's tag line. "'Don't shoot him again, you hit him hard the first time', Precursor to a hunt gone bad!" or something close. If its standing, or lying with its head up or otherwise not stone dead, not putting in an extra round or two is just dumb, especcially if it is an effort to preserve the one shot kill status.

JPK