Just my two cents worth, but all you really need is NERVE and a good back up plan.
Obviuosly you need to be good with your equipment and I think 50 pounds will do fine with a heavy arrow and a good tip BUT placement is everything.
What I mean about nerve is that I will almost guarrantee you that the first time you go after something that can actually hurt or attack you...YOU will have some NERVE ISSUES.
I have taken 11 blackies now and no grizz but they are different quarry for sure.....I MEAN IT.
This is a video of my spring bear hunt. This bear had killed my buds horse and was in the process of buring it when we found him. he ran into the bush and was making quite a racket....huffing and puffing - it will bring the hair up on your neck believe me.
He charged me twice and then I got the shot. I shot low (f%*&^%(&%(&%), but I got caught up in the moment and didn't pick a spot...it happens and it sucks, but it's hunting.
My buddy ended up shooting it through the lookers on the last charge....probably a good idea....not the biggest of grizz but he took down a full grown horse so I know what he can do to a human.
I would love to have a handgun, but don't get me started on our Canadian firearm rules, but they will make me a criminal soon I think. It's rediculous that here in the yukon in grizz country they won't listen to reason that if a person hunts with a bow that it would be a great idea to have a handgun on you somewhere....BUT.
So here's the video and the bear. I know it was finished with a gun and you will probably take it off the site because of that, but I hope you don't cause I think it's important for ppl to know what can happen and it happens real fast.
When we skinned him out I hit him in the foreleg (not proud of my shot at all), but then he went in the bush. the next time he came out he was pissed...sorry no video cause I was hitting the dirt while my buddy put him away.
Here it is and some pics ok.
my buddy is videoing and i am on the ground about 30 yards away and my heart is in my throat. He has false charged me once and then the second time he came in he was standing on his hinds waving his head and then punding the ground......
really makes you think about a bow, but hey that's what we do right.
this was the third time he came back and I got a shot. The next time he came back my buddy finished him.
Jer Bearless, but still here