Speer also redesigned the Grand Slam, from what I understand effectively making it a Hot Cor with a revised jacket to mechanically lock the core in place. I haven't used any Grand Slams, old or new, so can't comment on whether or not it was a change for the better. Thoughts?

"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown