Hi! (sry for my poor english) So i just bought a brand new ssg04 .308 win with 23.6" barrel (four groove 1:10" RH twist) and its cant stabilize the factory lapua ammo (without supressor), with normal ammo its just shoot perfect. I tought the barrel maybe damaged or somthing and i gave it to a gunsmith and he said no problem with it. I have no idea whats the problem? Someone plz help who have some experience with this rifle and lapua subsonic combination.