Absolutely thrilled with the comments. I may go with the Rock however as it is rated to shoot even the heavier loads. I have a Sig P220 Stainless Elite, that had problems shooting Sig ammo if you can imagine? I love the versatility of the Glock and my G17 Gen 2 has been as reliable as anything I have ever had. Tough decision but I'm going to ask Glock, because of your recommendations, before I do anything. Thanks so much! Who knows I may get both, because in this day and age you can never have enough weapons or ammo 