I did a little bit of shooting/testing today as well. This time I was sighting in my 220 swift with 55g FMJ's. I put a 200 yard zero on it, then busted some 1 liters at 300, then some 2 liters at 500. There going 3900fps, giving me .25" at 100 for 3 shots, and 1 inch groups at 300. I will try these on a yote, but if they run off, I"ll be switching back to my original yote buster, the 55g btip at 3925fps. I want to see if the FMJ's will kill them, so I can skin a couple pelts. Anyways, I also loaded up 2 loads with 180g btips and Retumbo. I loaded up 99g and 100g. I shot them at 300 yards. The 99g load gave me a 4 inch group and was scooting along at 3450fps. The 100g load was down to 3 inch at 3480fps. I'm thinking I'm gonna try 101g. Seems to get a little tighter with a little more powder. I'm not really seeing any signs of pressure. Probly break 3500fps. Thats 30-378 weatherby territory!!!