I always get light for caliber Barnes bullets. For example, in .308, a 130 gr. TSX is about the same length as a 180 gr. cup and core. And length is the deal, not weight, regarding stabilizing a bullet. And of course, how much powder room it takes up.

My best 9.3x62 groups were with 250 gr. NAB's using JB's load. My AHR CZ loves that combo and will print a cloverleaf. It'll do about an inch with 286's and Speer 270.

DF