22-250ai throat question

[L1986]

Well i loaded 5 at 35 grain and shot a group at 315 yards and measured actual drop and by calculating it its showing right at 3200fps which is about 100-150 higher then the chrono numbers.

 

[benchracer]

Well i loaded 5 at 35 grain and shot a group at 315 yards and measured actual drop and by calculating it its showing right at 3200fps which is about 100-150 higher then the chrono numbers.

It might be worthwhile to cross check using a different, known good, chrono.