I changed lot of H4895 from 5715 (last 4 oz) to 5825. I did load testing at the 1000 yd BR match last week. The first relay for lg and hg shoot 30.5 gn, second relay 30.6 gn, and third relay 30.7. I shoot poor, this is the same gun and barrel that I finished 2nd overall at lg national in Octorber. Last week I did a test using Labradar with ammo from the last match and some from the nationals (5715, 30.7 gn, 2/16/21 speed was 2950) last week speed was 2900. 6BRA, 28 in barrel, bart's 105 (+007), BR4. lot 5825 speeds were 2883, 2884. and 2908. I called Jeff Locke, to see if he had any ideas on the slow speed, because he lived in Seattle. He had no clue for a 40+ drop in speed. Anyone have a clue?