As some of you know, I swapped my factory .308 barrel for a .308 Criterion on Friday. This afternoon, I spent a few hours resizing and prepping brass for load development. I'd saved about 70 pieces fired from my factory barrel, and shot 30 through the new barrel yesterday. While resizing, I noticed the brass from the factory barrel was very hard to full-length size (it was properly lubed), but the brass from the new barrel sized very easily. Is this likely caused by much closer tolerances on the Criterion barrel?

Thanks!