Generally we are hearing that it is taking 3-5 months from the time you submit your ATF forms for approval. A local gun store Shooters of Jacksonville told me they have two agents assigned because of the number of transfers they do. They stated that this means that ATF Form 4 applications that they sent in are processed faster than at other locations. While I do not know if this is true, I can state, that a recent Form 4 I submitted through Shooters only took 75 days from the date I signed it, until receiving the approved Form 4.
If you want to check on the status of your Form 4 or Form 1, you will need your serial number and to contact ATF.
National Firearms Act Branch,
Bureau of Alcohol, Tobacco, Firearms and Explosives
244 Needy Road, Suite 1250
Martinsburg, WV 25404