Since when is it 3 days midnight to midnight? I've bought 2 Sig sauer pistols in the last 3 months and both were 48 hr holds(by that I mean 10:45am mon bought and 10:45am wed pickup). Am I missing something? I thought rifles/shotguns were same day buy/release. In WI that is.
You're confusing several different laws / conditions.
Wisconsin had a "48 hour waiting period" and background check on handguns before the "Brady Bill" became law. Brady said nationally that all handguns had a 5-day waiting period unless a background check is run.
Wisconsin has no waiting period for long guns.
What's happening here is that regardless of the above, all firearm purchases from a dealer require the dealer to run a NICS check. In the incident case, the "instant" response from NICS was neither approve nor deny, but rather "DELAY" which means they want more time to respond.
When the FFL is advised of a "DELAY", they must wait through 3 compete business days, after which they may complete the transfer unless they have been notified not to during that window.