Hi K and welcome to the forum. Are you saying that the Free Bore is too long? Or are you saying that the chamber itself is too long? That is typical of Remington Factory Chambers. Allows for about any length projectile. You could have the barrel set back and rechambered. What caliber is it and what barrel twist? Are you trying to Touch or Jam into the lands? Hard to do that in most factory 700s. Before I would spend a bunch of money on a factory barrel I would go the new barrel route.