Hello, I am new to reloading. I bought a Remington 700 .308 tactical, it has a 1:10 twist, while at the gun store I found some 30 cal 240 gr slugs, I have a suppressor and was figuring on loading a subsonic load and that the heavier the bullet the easier to get it subsonic. The problem is I cannot find load data for this weight anywhere. I even wrote sierra the bullet manufacturer asking for load data and they told me they don't have any. So did I waste my money on these or does someone have some load data for me?