Thread: Vertical <-> horizontal

Good morning,

was testing a new load for my 223 and had something I never had before. Grouping went from vertical (SD 9) straight over to horizontal (SD 4) within 0.5gr. Never had any horizontal stringing ever before in that rifle and I did a fair bit of load testing with it and so can eliminate bedding issues, shooter and most other things that come up when you have a look in google - and no, no wind either that day.




Plan is to load a batch with 23.7gr now to see if there is a sweet spot in between and do some 24.0gr with different seating depth to see if that will bring the grouping in.

Anyone ever had that problem before?
Usually get a random blob in a grouping and when I hit the sweet spot with a load, the blob gets around 0.4MOA in that rifle. Just never had stringing before like that...