Hi. I am new to this forum.I live in South Africa and have been using brilliant bullets from a bullet maker from my home town by the name of Gerard Schultz from GS Custom .His daughter Gina has now established a manufacturing facility in the USA. He will manufacture Super Premium Mono-metal Copper Bullets(the bullets that I use are GS Custom HV 130gr in a.308Win at 3000feet per second) to exactly match your rifle's bore. He also exports all over the world. Check out his website. It is extremely interesting. Bullet weight to use depends on the twist of your particular barrel.