I have the Omega X7...stainless laminate carbine with a silver Leupold 2x7 perched on top! 80 grains triple seven pellets behind 250 gr T/C Shockwaves works really well, but I'm trying out the Barnes TSX 250 grainers this year!
120 grains of loose Triple 7 behind the Barnes 250 garin MZ.
I shot this exact load in my Omega. And it was the most accurate load I have ever seen shot in a MZ. Problem was it was dificult to get the first shot down the barrel. And 100% impossible to get a second shot down the barrel. Tom.