Looking into building a 6mmbr for some varminting, I had originally thought of building a 6X284 and run it on light bullets but think it may be a bit of a barrel burner and I want soemthing like the 6mmbr where I will hopefully hit a good load really quick. My question is for running it on anything from the 58g v-max to the 80g berger what twist would you have, I know a 1-9 will work well with all bullets but I dont plan on shooting 100g or over bullets and would worry that a 1-9 might be a bit too fast for a 58g vmax. Might just build it as a light walking type rifle on a trued up remi action.