Javelin Gen 2 Slug 36gr .250 @ 150m/164y 

reg 128 bar, micro 4.2, valve 4.8 (stock hammer & valve return spring)

It's a FOX 300.

Hi, about 100J when shooting 36gr.

Thats correct, i notice some inconcistent BC values when pushing them to higher velocity. Ambient conditions like wind and temperature affect, so in different conditions it can work to push them at higher speed.