I will post as though I know the answer to your question, but only because it has been so discussed "at nauseaum" on other boards.
The answer is, there is no answer. Many folks use this bullet with great success at the ranges you mention. Others wouldn't shoot their son-in-laws with 'em for fear they would not finish the job. Sierra recomends they NOT be used for hunting and there is no disputing that fact. But as far as facts go, that is the only fact I can confirm for you. Let your experience and the experience of others you trust be your guide.
Just for fun, go to http://www.huntamerica.com/wwwthread...t=&Board=UBB13
and search "matchking". I think you will get all the info you desire on this subject. I know I sure have [img]images/icons/grin.gif[/img] Good luck! Jim R
[ 12-02-2002: Message edited by: Jim R ]