If the swell is in the bore you have some sort of obstruction there that needs to be removed,if the swell is on the outside of the barrel then the damage has already been done-Take the rifle to a gunsmith DONT FIRE IT as you could make matters worse. Either way get it looked at as soon as you can!!!


As stated in the other reply' s the most likely cause was something in the barrel.


The sako should be a great rifle so let us know what happens.

Good luck


Alan