One noted paleontologist was asked how he dated a particular fossil. His response - when he flew over the area before landing, he could just tell that the area was at least 4.5 million years old. Yeah right!]
No. Simple counting of C-14 (the traditional method) is good to about 50K years ago, and by using a cyclotron and a mass spectrometer, C-14 dating can be extended to about 100,000 years ago.
As for the alleged circularity of fossil dating, I might point out that there are other external indicators used to calibrate and judge the accuracy of radioisotope dating - you really ought to investigate the techniques used before asserting such a thing.
One wonders how a creationist would determine how old the object is, or even what it is.