I'm considering getting a Ruger SP101 with a four-inch barrel as a hiking gun. (I'm a little disabled now, but I hope to be healthy someday and resume hiking.) I'd want to load the gun with something that could discourage bears, mountain lions, or maybe even a wolf. At the very least, I'd want to be shooting a bullet weighing 158 grains, but I'd prefer to use something weighing 180 grains. I know that Ruger marks some of these revolvers to say specifically that they should not be used with bullet weights more than 125 grains, but I'm looking at one without those markings. I wonder what experiences people have shooting heavier bullets through the SP101. Is that too much bullet for good control in such a small gun?