So I had a lb of H1000 sitting around from last year and decided to use it to work up a load for my new 6.5-284 Norma. 55.5 grains with a Hornady 143 ELD X was netting me 2935-2955 fps. 26in barrel. With 1/2 moa accuracy at 100 yards. Normal pressure and normal velocity. I ran out of my original lb and bought a new lb of H1000 2 days ago. Different lot #. MAJOR difference. 100 fps SLOWER (2850) and much more pressure. Heavy bolt lift. No way I can increase powder charge to gain what was lost. Didnt change load at all. Very disappointed. Was really wanting to use H1000 in this rifle. Things were looking great until I had to buy a new lot #! I even checked my chrony speeds by pulling out my 308 and verifying its normal velocity. Problem was definitely the different lot #.
Anybody else having issues with H1000?
Anybody else having issues with H1000?