OK range report
First, here's a pic, or two.

The above pic shows (L to R) the Barnes TSX gen 3, the Barnes TSX gen 2, the remains of a 300gr lead free 45-70 bullet, the remains of a 430gr cast lead 45-70 bullet, the remains of a 170gr lead free solder 38-55 bullet, and a 45-70 bullet I did my hammer torture test on.

The above pic is the last two lead free solder 45-70 bullets shot for accuracy test, but only at 25yds. Even still it looks promising.
Looking at the bullets, you need to know how they were tested. For all but the 45-70 bullets, I shot them into one gallon of water, then the bullet went into gallon jugs of wet sand. Actually I shot the first lead free 45-70 into water, but the shot allowed the bullet to miss the sand jug. I shot it a bit too low at first.
The 38-55 bullet started life at 170gr, went through the water, into the first sand jug about 2/3 of the way through. Very little expansion, but good penetration, and pretty fair weight retention at 157.2gr. Estimated MV was 1000fps.
This was about the 38-55 but I'll pass on the other info as well.
The gen 3 TSX bullet didn't perform too well, in my opinion. In all fairness, Barnes did advise me to "score" the hollow point to aid in expansion. It looks like that design really needs the help.
The gen 2 TSX opened on it's own to a .675" mushroom. MV unknown but estimated about 2100fps.
The lead free solder 45-70 bullet, spread to .565" and shed some weight, much like any cast bullet would, normally. It ended up going from 300gr to 171.5gr, penetrating 1 1/2 sand jugs. MV was about 1800fps.
The lead cast bullet really surprised me in a couple ways. First, it spread to a HUGE 1.235" mushroom, still weighing 423gr from a start of 435, second, it only penetrated one jug and smashed into the second one, barely breaking the plastic skin. It made a dished out (1/2") dimple. MV was a little over 1700fps.
Conclusions,
The 38-55 bullet, as is, I wouldn't use for hunting deer. It's make a good coyote load, but unless I can make it expand, it needs to sty on smaller animals. At higher velocities it might perform pretty well, but it needs to be sized properly, and have a gas check installed. The 45-70, performed well enough to take deer or black bear, I think, and it appears pretty accurate.
The Gen 3 TSX needs a lot of work. Gen 2 will work as is.