I think the original poster said he had a 325 WSM and I believe the 200 is the lightest bullet for that caliber. However for bear I wouldn’t be opposed to shooting a bullet below 200 grains as long as it’s constructed well and placed in the correct spot. Doesn’t necessarily need to be monolithic copper, the Barnes tsx is a popular one up here for penetration. If it were me I’d prefer a Nosler Accubond or Partition.
