Otter6,
As I stated in my first post on this thread, the Speer BTSP rifle bullets are NOT Hot-Cors. Instead they're swaged, like most other bullets, and have softer lead cores than many other cup-and-core bullets. The 150 Speer .270 bullets on your bench are either flat-base Hot-Cors or boattail swaged bullets. They can't be both.
Will also note that I've had both Sierra GameKings and Speer Hot-Cors leave their jackets at the ENTRANCE hole on deer.
Yes,I've known that for years. They are 150 grain Hot Core flat base.
