From the site I linked to earlier, the Gold Dots did not penetrate deep enough using his 2.8" test barrel, but I would just about bet they would be just fine in the 3.25" G42 as far as penetration. From the pictures he posted, the Gold Dots were one of few that actually fully expanded in the denim tests. I do not know enough about velocity versus expansion in the difference between a 2.8" and a 3.25" barrel, but I personally feel the Gold Dot is a decent choice. None of the XTP loads expanded fully in the Denim tests, but they did get the 12" minimum penetration depth, and did not over penetrate. I am on the fence between the HPR, Hydrashok, and Gold Dot for Primary carry round.