Thanks for the information. Recently purchased a box of HMS Trophy Gold extended range 140 gr hpbt. I used my chrony and I only got 2,760 fps. Accuracy was 1" group but those velocity are terrible, especially with a 26" barrel. I was disappointed because I saw those videos were there shooting game all the way to 900 yds. I bought some US 869 going to see if I can do a lot better then that.
I tried US869 with 140 gr Partitions working up slowly with Speer's data and got 3030 fps with 76 gr, their max load. With your 26" barrel you should be able to get more speed than mine.
