I think this is ok
I just recently worked up a new load for some 45acp and they didn't fit in the mag either. I did just what is being suggested and push them in about. 01. Granted my situation is a little different with the larger capacity 45acp . You could try a round or two and check for problems first. I am probably dealing with different primer and powder than the OP...many variables here... proceed with due caution.