A long time ago I worked with a nuisance bear program in two States. We would "remove" problematic bears. There was no hunting, it was work. We shot them off dumpsters, picnic tables and front porches. These were black bears determined to be "immediate danger" by someone other than me, and they escaped one failed trapping attempt. We could not afford to let the bears go far and absolutely had to find them - don't want a wounded bear running around in a Girl Scout camp- for instance. We tried lots of different calibers, etc and found two that just seemed to always put them down quickly without the projectile travelling through and if it did it didn't go very far. What is cool about bears is that there is a lot more drama when you shoot. They will front roll, side roll, scream and moan, claw and bite the wound, run into stuff, etc. Very few just drop at the shot. I have been present when a fawn call was used in a remote area and a black bear came to see what was up. Have not heard much about success with "varmint" calls. I've had a bear camp in the Northeast and the Northwest and both were primarily a bait and sit type hunt. I prefer spot and stalk but … location, location, location … you need the right geography for that to work out. Bears are fast and of course has claws and teeth. The only issue I ever had out of dozens of bears was on a hunt. I shot a smallish 200-pound bear and it ran into the thick. I went looking for it and eventually saw it backed into a "hole". Too late, it must have thought I was blocking the only way out and it ran towards me. This wasn't a "charge" but rather the bear trying to escape. It ran into me just above the knees and knocked me over. The paw got stuck on my shirt and tore it open and one side of my face too. The bear kept going. When I got up, surprised and bleeding, my rifles rear sight was gone … it broke off somehow. I left the bear for an hour and when I went back it wasn't far away, dead. Grizzly bear are said to be more curious and will more often appear in the open. My only experienced is a guided situation in Alaska, so I yield to someone with more time among them for ideas. From the previous info and posts you seem to have a pretty good plan. My opinion is that your rifle will work fine on black bear. Good luck on your hunt!