Works well in .358 Winchester, .30-30, .357 Magnum, and .204 Ruger in my shop. Seems to have the same life span as any of the other manuf.'s. I use the .204 Ruger for making up .222 Magnum brass; sizing up to 222 and setting the shoulder back in regular run RCBS dies. I usually anneal before the sizing operation, but on one occasion forgot and had no splits. It's good brass. Rod