So I just recently shot my first handloads. I had the chronograph about 15 feet away. There was a little bit of wind. I was shooting an unbraked 220 Swift, a braked 300 win mag, and a braked 30-378 Wby Mag. I got very inconsistent readings between loadings on all 3 guns. It was my first set of reloadings but I paid close attention to brass length, COAL, charge. Anybody have any ideas what my problem could be? Also, what is everyones suggestion on chrono setup for shooting. I dont have the numbers from the loads, I misplaced my sheet. It wasn't like 400 fps difference but was as much as 100 fps or so I believe.