Yes you can use pulled bullets. It sounds to me as if you don't have your seating die adjusted quite properly and not getting a crimp on your case.
An easy fix is to put an empty case in and run the seating die down until it touches the case mouth. Then back out the seating plug screw the die down another 1/8 to 1/4 turn depending on the amount of crimp you want. (note: your bullet should be seated to the cannelure.) Run the loaded case into the die to crimp the bullet in the case and then lower your seating plug till it contacts the bullet.
Now your die is set properly.