You may have State laws that are as strict or stricter than the Feds depending on the state.
For example Billy & I have to put up with the "MN Assault Weapons Ban" -- basically it means that there is a waiting period for certain types of rifles (and sentence enhancers equivelent to those for pistols whenever those same rifles are used in a crime). Not zero, but not too onerous either.
What get can get really confusing is the interaction between Federal and State laws. Here's an example, that some of our members have faced: Some states require a waiting period for handguns. Those same states can except "dealers", "FFL's", "or "licencees" from this requirement. Now what happens if you're an 03 FFL (C&R) holder, can you have C&R pistiols shipped directly to you or not? It all depends on how your state's exemption is worded. Guess wrong and you're now guilty of "weapons violations" . . . sigh.
Larry
PS: MN only exempts "dealers", so MN 03 FFL's would do well to get a "Pistol Purchacers Permit" or CC permit to bypass the waiting period. In these cases CYA is a good thing.