Re: Berger 180 gr VLD not looking good in the Sendero
That's a little different issue from "stabilizing".
But, I see what you're saying. ...although, I can't quite fathom the throat being so long that you can't touch the lands without enough neck to hold the bullet.
If you could do that and it just won't feed from the magazine, then I'd suggest you simply try loading some as a single shot just to see if you could get an accurate load.
The good news is that Bergers aren't the only good 7mm bullets.
Have you tried any other bullets?