I have a RWS rifle that is advertises a muzzle velocity of around 1100 fps. Someone at a pellet rifle repair business suggested I use heavy pellets for a rifle with that much velocity. They recommended and I purchased 10.5 grain Crossman Premier pellets. I have not measured the velocity but feel like they might be too heavy. I am basing this on nothing more than they way it sounds and feels when I use these pellets. They may be the correct weight but feel much different than lighter pellets do when fired. I will be going small game hunting with the rifle soon and would like to hear your thoughts on the correct pellet weight for a high velocity rifle. Thanks.