In Nh. I’ve been seeing 1-3 day delays on average. every so often it’s an hour or so for a long gun if the stars align. past few firearms i’ve purchased lately i give them my cell and say call me when it goes through.
NH has a split system. Rifles and shotguns go through the FBI NICS system. Handguns and other firearms go through the NHSP Gun Line, which has always been slower than NICS.
For those who don't know, a return of "delay" allows the FFL to transfer the gun after three days. It's at their discretion, and the three days don't include Sundays, holidays, the day of the sale, nor the day of the transfer.
That means that on a holiday week, it could take 7 days
if the FFL is willing to transfer without a "proceed". Many are not willing to do that.