Here is a offering from Double Tap;
Whether it is adequate for the big bears I do not know. I would suggest that this is the best that could be done ammunition wise, I would shoot it in my 1006..... But only in desperation from my Kimber 1911-10MM.
10mm 230gr. WFNGC Hardcast 50rds
The heaviest and deepest penetrating 10mm in existence! This hardcast Wide Flat Nose Gas - Checked bullet will not deform on impact, and will create a large deep wound channel. Excellent for hunting or woods protection!

Caliber : 10mm

Bullet : 230gr Wide Flat Nose Gas Check Hardcast

Ballistics : 1120fps/ 641 ft./lbs. - Glock 20
1008fps / 519 ft lbs 100yds Glock 20
Glock 29 - 1075fps

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Ipsis Rebus Dictantitbus