I bought a tracker 4 inch 44 mag for bear defense ( going fishing in alaska) I've been practicing with 44 spl and full power 240 gr magnum loads, and bought a box of 300gr full power loads but they are very rough on me and the gun , what does taurus say about running the heavy loads through the tracker? ,also bought some 310 gr coated bullets to reload , was going to load a little milder than heavy factory loads, around 950 fps, will that be powerful enough for brown bear.?