And, one last post for the night...
I just want to point out that the unbonded versions of these bullets suffer from absolutely none of the problems I've discussed above. It's just the bonding process (and components) that are causing problems.
But... my primary motivation right now, is being able to hunt Elk with my own bonded bullet this November. So, bonding is my priority. While working out the bugs, I may throw together 100 or so of the unbonded 250-275 gr bullets for use in .44 Mag; but that can be done very quickly (if the cores are available) and isn't a high priority.
I do hope to have enough good bullets to do thorough testing on the 4th of July, though. So, I do have a bit of a deadline. We'll see...
"Such is the strange way that man works -- first he virtually destroys a species and then does everything in his power to restore it."