My experience with a healthy volume of Nosler seconds over last 5-6 years is that sorting by ogival variance yields more consistent results than weight sorting. Sort ‘em, and they are quite workable, but unless you have spare bench time and you’re willing to slightly modify loads to suit variations in BTO ( have observed .024 variance in Nosler ABLR seconds), and can amass some volume in consistent BTO’s to avoid constant shifting of loads, it’s your decision to go down this path. Can’t speak to Sierra, but would look at ogival variation in the lot size you might purchase to know what you’ll be working with.