WOW, going to the range today and trying out my new chronograph brought me an unbelievable surprise. I was trying out different loads with my new 257 accumark through the chronograph. I was getting pretty good groups from my various loads but I thought the velocity was pretty low for the AccuBond with rl22. I was getting 3370 fps avg with sd of 12, groups around 1" as usual. Well, when I went to my pet load with 71 gr. imr 7828 the velocity went up 120fps and get this, the sd was 0. Yes that's right 0. I shot 3 consecutive shots at 3490 fps. The second shot registered dup shot 1 and the 3rd shot registered dup shot 2. I've never seen this in all my years of reloading. The 3 shot group measured .225" by the way. I think I'm through looking for the right load. I can't, for the life of me, beat this load on paper and now on the chronograph. :grin: