To reduce chance of killing it while trying to knock it out is by shooting with a primitive crossbow without delay until it starts to show blood then switch to a regular bow and then space shots 7 seconds apart - works every time for me no matter the level
1: lure in trap
2:using tranq ARROWS spam it till bloody
3: let it kill you
4: if it doesnt kill you then kys and drag body infront of it in the trap
5:collect honey and place in hotbar
6: drop honey infront of bear and it will attack/bite the honey and consume the body
7: go back to shooting till knocked out or if bloody repeat previous steps
8:honey can also be used as a lure instead of grabbing aggro
9: pull multiple bears into pen as they cannot hurt each other
Only use arrows if it’s lvl 130+ or you will most likely kill it
Do not run from it it will hunt you down an they get faster the more they run to tame get it in a small pin or stand on a tall rock they have good aoe so try to find a rock or cliff that is tall so it can’t hit
With such a low breed timer and they're alternate swing being the same damage as a Rex they make ideal breeding and are great for meat runs very fast and have huge carry weights. A very good tame one of the best in my opinion
While breeding this creature is not as difficult as others, There's an easier way to do it. When it is born I advise you feed it raw meat until it hits juvenile stage, after that point fill up troughs and the bears inventory with mixed berries, since this creature is an omnivore it can eat berries. Using berries until it is fully adult will ensure that it's food source does not spoil as quickly as raw meat can. Good Luck!
The most risk free and effective taming method is to
1. Build a taming pen
2. Lure or drop him in
3. Build a bed and storage chest next to it
4. Tranq the bear until he starts to show blood
5. Put your inventory in chest
6. Let the bear kill and eat you.
8. Respawn in bed, get inventory and finish tranqing. No need to switch to a bow or use traps.
This is very effective because the bear will regenerate a lot of health from eating you. And you will have no risk knocking it out. If you do this correct, maybe even kill yourself twice, you can get the bear to be at 80-100% health when you knock it out. Thus increasing chances of it surviving it someone/something hits it.
Best way to tame these is to build a little 2x2 stone fence foundation square, a stone Dino gate at one end a stone doorway at the other and fill the rest with stone window frames. Lure it in the gateway, run our the doorway, tranq safely through the window frames