I recently bought some 215m primers and went to load it with same same Berger 185 vld and h1000 cocktail. I also loaded .1 and .2 over and under with the h1000. My results were not good, I shot the old load with regular 215 and got .252" which is my best group so far at 100 I then got a 1.1-.9 with the 5 loads loaded with 215m. I have never tried the 215m before and from what I read they were supposed to be more consistent, so I was shocked at the difference I then pulled three more of my old load out and had a .312 group. I did shoot my best two groups with the old load. What caused this I'm looking for the most accurate load and with the best consistency. Should I go up or down with the powder? I use competition loading dies by redding. Nosler brass and I check each round for runoff anything more than .002 that can't be corrected is used as fouling. I have been loading for two years and had great results so far. Just baffled at the 215 m please enlighten me to what I messed up.