I love my HPG Kit Bags, but a 6" N-frame won't fit.
I'd take a serious look at an El Paso Saddlery Tanker.
Yep. Just tried a 6.5" N-frame and you are correct, big negatory on the HPG.
Do you have a Ruger Bisley 5.5" you could try in it? I'm thinking of a kit bag for carrying my 45 Colt Bisley this year.
I've got two 5.5" Bisleys, the Old Model in .45 Colt and the New Model in .44Spl.
I'll dig 'em out and check after I get back from supper if you want.