Rob, I’m using the gun without moderator, I neither have one. But is a common that it could really interfere with. I’ll show you my crono results in m/s: JSB Monster 25.39gn at High, 277m/s H&N 21.14gn at Mid, 268m/s JSB 18.13gn at Low, 250m/s I’ve got 3 RW HP in .22 at the same time...