PSA 18" Rifle-Length 6.5 Grendel 1:8 Stainless Steel 15" Lightweight Opinion?

[Sixoeight]

Thanks Big Dog. I am also interested in 20" - is it much better than 18"

There is very little difference between 18 and 20 inch barrels. Unless you are trying to squeeze 50 extra yards out of the rifle before it goes trans sonic you will never notice the difference. These are not exact numbers but it's a difference in velocity of something like 1-5%