My guess is it is probably Nosler. That bullet resembles the Nosler bullets I use in my .44. I buy the 250 Ct. Sportsman's pack. They are very simialr to the XTP.
Oh, about the wife, mine used to complain too but now after 33 years, she just shakes her head when a package arrives or if I tell her I'm going to Cabela's. Like yesterday, she tagged along with me to try and restrain me. I still ended up spending a couple hundred bucks. Well at least she was along to help me carry the stuff to the car.