Thread: chrony on factory loads

Yup same here, i have 100x sako 55gr 22250 rounds, and in my ackley chamber they chrony 3360fps with the magneto speed vs packet velocity of around 3600fps. 23" barrel, but it is also being fireformed.

On the other end, i have a 308 with a 20" barrel and an obermeyer chamber (tighter than saami) and i actually get pressure signs with sako 150gr factory ammo, and it measures ar 2850 which is faster than i think the 2800 on the packet