I group test some ammo for my new 1 in 8.25 saum barrel.
The loads that grouped the best I chronied,one was 61.5grs the other 61.9grs. The 61.5gr load shot 6fps ES and the 61.9gr shot 26fps.
I then tried a ladder test at 305yds.
I loaded up starting at 60grs going up in 0.1gr increments up to 62grs, after 8 shots the load plateau'd through the next 12 shots before the shots started climbing and showed a faint ejector mark at 62grs.the plateau of the 12 shots gave a verticle spread of 0.687 of an inch....
I already tested accuracy and chronied and the 61.5gr load was near the middle of the plateau so I went with this as there a little wiggle room for temperatures variations...
The load shoots great and driver error is the weak link 🙄😁