It would be more reasonable if the New Jersey State Police website did in fact say they were legal. It does not, it says only that they are not hollow points.
The law ought to be overturned on appeal for a myriad of reasons, not the least of which is Miller's "in common use" standard. And I agree with several posters who feel the law/definition is unconstitutionally vague, but unfortunately the appeals courts have already ruled against that in the case of Brian Aitken (State v. Aitken).