Yep, I've been doing vast amounts of research all weekend long. I have found a lot of information that points towards the smaller weight being used in more of a 'close combat' situation, much like I imagine a home invasion would be. The lighter the bullet, i.e., less grains, the faster it is propelled out of the chamber, making it more accurate in short to mid range distances, i.e., close combat situations, whereas the heavier grained bullet is harder to shoot accurately in short distances, but produces better accuracy toward the latter end of the spectrum. I believe the 115gr rounds would suffice for home defense vs. the heavier weight. This is concluded from reading MANY articles and stories over the past few days, so, everyone post up what you think. I think penetration at close quarters should not be that big of a difference in between the two rounds. I'm going to do a little more research before ordering the bullets I want. I'm going to order three different boxes, specified by weight (115gr, 124gr, 147gr,) to perform different tests at the local shooting range to see which bullet will work best for me.![]()