Are you using factory ammo with your 15-2 or are you reloading for your hunting round? It was a toss up for me to use the 741 or my 15-2 this year. I will certainly hunt next year with my 15-2 and an 8" barrel. My hunting load for the 357 was a 180 Grain Swift A-Frame and 13.7 grains of H-110 with a Small Rifle Magnum Primer. Good luck hope to see you post a pic here with your DW and a big Whitetail.
I was looking for the 180gr Buffalo hard cast but the in Kansas City and in Wichita were out. at the local gun shop I found some Hornady 158gr XTP's. That's what I've been carrying. Once I get the reloading dies and a few other items I would like to bump up to a 180gr projectile. I also wouldn't mind getting an 8in barrel from EWK.