I am not the last of the great bear hunter's. Only ever killed one and that was long ago. Got a shot at one at about 50yds with my 7mm Rem Mag and a 140gr Sierra. Bullet went in the chest, between the legs, and blew up in all the fat. That was the last time I uaed anything lighter than a 160 Speer HC in the 7mm mag! when I opened up the chest there was a huge amount of fat that stopped the bullet. But the bear only got about 50 yds and layed down. Second shot behind the head finished it. I like easy expanding bullet's but only on varmint and coyote, don't hunt a lot of them anymore either! That shot was about the first I'd taken at game with that bullet in a mag rifle. Happened in mid fall so bear had spent all summer putting on his winter fat, I think that makes a big difference. I wouldn't use a shotgun on coyotes either. I believe a well placed 100 gr bullet from a 243 will do a better job. What's more I think you have a shot at even 50 yds and it turns to leave, I think odds are the shotgun with buck shot could be real disappointing. You have no opportunity to direct a piece of shot over than over there! Take instead a Cf rifle and there's only one projectile coming out and you should know pretty close where it will hit. Then again if a coyote is coming in and hangs up at 100 yds, you pretty much don't have a shot. Then of course if the coyote is attacking you and 10yds off, yep , I'll take the shotgun and buck shot then. Of course I wouldn't want a shotgun with slugs at all, just lacking in accuracy. If I went out for coyote's today least rifle I'd take would be a 243, Much more accurate at much farther range than any shotgun. If I were in Grizzly country hunting them I'd take my 30-06 loaded with 200gr bullet's, you know, just in case it's needed.