I've tried various loads and at 200yards out of 5 shots 4 will be within a 1/8" of each other or touching , but 1 shot is consistently off by 1/2" or more. yes the barrel is pre shoot and warm . my bullet weights are the same before loading and the overall weight and lenght is checked they are as perfect as i can make them
using H1000 80.8 gr. with 285gr.BTHP Hornady match Lapua brass.//338 110BA
Thanks for reading