Welcome to the forum..
Glad to see another pup owner!!
It has been cycling OK this way I assume?I agree with Tom,I would clean,lube,check your recoil spring/rod,and make sure everything is together as it should be,then see if you still have the difference..
If I remember right,someone else here asked about this..
My pups all "match up" with frame at firing position..
Welcome again,
Brenden