I havent had a chance to pull one apart yet....but I clocked some 168 FMGG 5 rd average and boy was I suprised at the speed.
Average was 2800 (wow).
I cked my chrono with known speeds and ballistic calculations from other rds that Ive dialed in from 100 out to 1K so i know the speeds are correct.
The range where I was doing the testing is at 3850 elv. the mountain valley,s where I shoot at 4200 ft.

way cool.......let the reloading begin....least I know where the speeds need to be....now to pull one apart 2-night.......muhahahaha.....