There's a couple of sellers on GoneBroker who sell reject factory ammo. During good times I bought about 1000 .40S&W from one seller, 250 at a time. It was all loaded with 165gr. plated (probably the old, pre-bankruptcy Xtreme) and what looked like it was maybe HS-6 powder. 4.7gr. for a 165gr. .401" bullet at an advertised 1150fps. It was all seated about 0.020" too deep and the crimp was over the ogive. Looked like setup runs, probably. I pulled them apart 50-60 at a time over the course of several months and reused the primed cases as-is, tumbled the bullets, loaded them back in the same cases with fresh powder (also HS-6, 4.6.gr. for 1050fps from my Springfield XDm 4.5), and used the powder to make sparklers. After the PlanDEMic got under way, the same reseller had the same deal but these were 155gr. loaded to 1200fps (advertised) and the powder didn't look at all familiar. These were seated but not crimped and from a different manufacturer, pretty obviously. I bought 500, then another 1000, and they came apart with the whacker almost without any effort. Some of the bullets fell out in transport. Some I could pull with just my fingers. It really depends on how they're crimped - IF they're crimped - how hard the whacking is.