I would say NO. Specially if it's store bought ammo ,and not re-loads beefed up.
the four conditions for use of deadly force?
1. Be innocent of instigation or provocation. You must be a reluctant participant. Do not go looking for a fight. If you are guilty of instigation but then withdraw, you REGAIN your ...right to self-defense.
2. Attempt to withdraw or retreat if you are able. (this is not a requirement in Wisconsin but it is in some states) We don’t want to shoot anyone if we can safely escape. While you are not REQUIRED to retreat in Wisconsin, juries are allowed to consider this aspect.
3. No lesser force will do or use only sufficient force to deliver oneself from evil.
4. You must be in immediate and reasonable fear of great bodily harm or death or had an immediate and reasonable fear of death. Grave danger must be imminent.