I first tried H1000 with 140 gr Berger Hunting VLD bullets, and got pretty good accuracy up close (200 yds), but not so great at longer distance, a lot of vertical at 700 and 800 yds. I'm in the process of completing longer distance ladder testing with H4831SC and it's giving me a lot less vertical dispersion. The H4831SC is a little slower velocity, but not much.