I have started to reload my 22-250 I used imr 4166 with 32 grains and a seating depth of 2.373.. the groups I get with it are around .5 100 yrds with that load . but when I was shooting it I found that I didn’t get same groups as I did previously nothing on the rifle changed nor did my charge nor my primer or bullets … i was getting around 1.1 or 1.2 at 100 yds today I don’t understand what changed I used h380 with the same charge of 32 grains and got .5 inch that same as the 4166 so I don’t know if it was a metering issue or what