So, Glock 40 it is.  Thank you all for your input!! 

I agree, a shotgun is the best protection available.  But, tough to carry in certain circumstances.  I really like the idea of having a high round capacity and the lower recoil of the 10mm compared to other calibers is very appealing.  Thank you very much for your input!! 

Hello.
I am new to the forum, so I will thank you in advance for your help. 
I am considering purchasing a Glock 40 to carry for bear protection.  I have attempted to do as much research as I can; however, there are so many "opinions" it gets a little crazy.  Can any help me with the following question:
Is the 10 mm, with the right ammo, a capable round for bear protection?  I would also emphasize that without practice, range time, I'm not sure any pistol will help! 
Thanks for your time!!