I'm still using my old T36 Bostitch sheathing stapler, 1/2" crown, up to 2" staple length, and 16 gauge.
This and my T35 roofing stapler, and N80 clipped head framing gun are at least 25 years old and just won't die.
Kind of why I am a fan of Bostitch guns, and have newer N88RH-MCN and F21PL framing guns for the metal connector feature.
Also own Max coil guns, and a bunch of Senco finish guns, old and newer. And like my old Senco LS5 and SFN1 better than the newer guns.
But back to the staplers. You have to watch what the code requires in your area, as a lot of the 7/16 staples are 17 gauge and the code in some areas allows 7/16 staples but they must be 16 gauge.