Chrono'd three Nosler factory loads at the range. Was only 34 degrees with a PA of about 60 feet. Have read velocity slows between 2.5 - 4 fps per 1.8 degrees so that factors in.
...............Claimed.....Actual avg.....spread..... diff
140 ABs........3150........2983............49.........-167
150 LRABs....2930........2904............10.........-26
160 NPs........2950........2736............31.........-214
I would expect a difference with the cold temps, but a 214fps difference? Claimed looks real for the LRABs
Is that 34 below zero? Or 34 degrees F? I agree that's pretty bad.
34F is NOT cold. I have never loaded a cartridge that lost 160-214 fps going from 75-85 degrees to 34F. Thats also pretty pathetic for factory ammo for a case thats supposed to be so "cutting edge".
