I hqve a 550b .Just bought it used.It is in great shape.
I seem to have an issues seating the primers.
Not always but sometimes.It seems like i am exerting an awful lot of backpressure on the handle
in order to seat them..Is this normal??.I have the small black steel plate under the primer mechanism.
are there spacers one can add to this in order to get the seater up a little higher??

noob