Wouldn't do it for many obvious reasons.
I think you need to get your 7mm checked out and go from there. I doubt the barrel has been shot out unless you've put a couple thousand through her, but the throat could be shot since you say it wasn't allowed to cool properly. Is everything tight, scope rings, bases, action screws, etc? Are you shooting from a bench?? Are you using handloads or factory??
It would be far better to take care of your problem now at home with the 7mm, then in the field with an elk on the line and a very marginal caliber/bullet selection at that.
If you plan to use a 6mm cal for elk, stick an X bullet, Aframe, or any other premium bullet that holds 90%+ weight retention so that it penetrates to the vitals. A VLD is not exactly a bullet that holds together very well in my experience.