If the cocking of the bolt is acceptable after dry firing on an empty chamber, then the issue is a mismatch of ammo to rifle.
Some Savage/Stevens will come with pretty stiff bolt open out of the box but that will wear in or you can hone the cocking surface on the bolt body if in a hurry.
Ensure that a quality grease is put on the cocking piece/cocking ramp on the back of the bolt and on the back of the lugs. Running the bolt will smooth things out.
If the issue is after firing some type of ammo, then inspect to ensure there are no scratches or burrs on the ejected case. That might indicate a chamber that has rough spots which will lock the case making it very hard to eject. That is a warranty problem for sure.
Otherwise, look at the primer and if flat and there are shiney spots on the case head (by the lettering), load is way too hot for that rifle. Could be too much headspace as well but will show up if there is no resistance during chambering.
Jerry