The performance of the "modified" bullets is drastic. And your experimenting and posting it online is wonderful stuff.
And...I hate it when someone inserts "don't carry re-loads" when discussing duplicating factory CCW ammo or heaven forbid modifying bullets....
With that said I'll insert this link to a response I received when seeking load data for factory loads for a snubbie that I've been recently carrying.
It's sobering and food for thought in case anyone is tempted (as I am) to CCW handloads or modify bullets for said purpose.
Not to derail...continue on with the experiments by all means...just something to seriously consider.