I have a question for you guys. Is it normal to have a horizontal point of impact difference between jacketed bullets and cast? I understand a vertical difference, but my Ruger GP100 consistently shoots cast bullets approximately 5 to 6 inches to the left of jacketed bullets at about 25-30 yards. I thought it was me at first, but I have done it over and over the last couple weeks. Does it offhand and from a bench. This is the only gun I own that I have noticed this in. Im shooting 158 grain cast and jacketed bullets with 15 grains of H110 pushing the jacketed, and 14 grains of H110 pushing the lead. Thanks