Beretz,
I ran the test with the 129SST. It appears its reputation as a soft bullet is
deserved and performed well at low velocity. Expanded more than I anticipated. It lost 30g and expanded to the same diameter as the 127 lrx.
I ran the test again on the sst at a velocity of 2600 fps and it came completely apart.
I tried all three bullets in packed newspaper and all three zipped right through
without expanding fyi.