Yes. One lower and 3 different uppers for different purposes. Hunting (20" light profile 338 Federal), High Power competition (18" medium profile 308) and long range (22" bull barrel 260). Having the same lower helps develop muscle memory for cheek weld, etc and it is nice to have a reason to shoot your hunting rig a lot. After developing a load for a bolt gun I just look at it and think "now what?"