Re: 270 Savage Axis bolts
No, it does not have to be cocked for the bolt to go back into the reciever.
I'm not sure what the problem right off hand could be, but a bit of jigglin' might get it back in?
And one thing two you might check, is to make sure....just twist the end of your bolt to make sure the both lugs are in proper line with each other as it only takes a bit for the bolt not to slide back in.
Two Words; "Simple Man", song by Charlie Daniels sums up my thoughts on a "few things"!