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Timofey I. asked 6 years ago:
Timofey, the A & B are Federal's way of differentiating the bullet weight in grains. 308B = 180gr Bullet and 308A = 150gr Bullet.
James G.
6 years ago
A is 150 grain bullet see ******"Federal 308A Power-Shok Soft Point 20RD *****150gr 308 and B is 180 Grain "Federal 308B Power-Shok Soft Point 20RD****** 180gr 308 "
Randy I.
6 years ago
