I've been shopping around for a DPMS 308 rifle and am sort of overwhelmed with all the choices. I would like to use this rifle as a bench/ground shooter to learn to shoot long distances. It doesn't need to look pretty but I won't be upset if it does.
I started off looking at just the 24" barrels for maximum range. I came across the SASS and love everything about it except the fact that it's only 18". How much range am I giving up with those 6"?
Certain DPMS guns are chambered for 7.62x51 NATO and others for .308. At first I assumed that a gun chambered in 7.62 would shoot any .308 (like a gun chambered for 5.56 will shoot any .223) but read that this is not the case. Am I understanding that any rifle chambered in .308 will fire 7.62 and not the other way around like I originally thought?
My other concerns with the rifle are things like fluting, barrel threading, and trigger assembly. I could live without the fluting but I would sure like some sort of suppressor at the end of the barrel. I can't find any for sale that have pre-threaded barrels from the factory. I guess a bigger concern is the trigger assembly. Most people don't like the factory trigger assembly. How difficult is it to buy a new trigger (say JP 2 stage or one of the more expensive ones) and put it in myself. Is it something that will require any sort of gunsmithing?
Any thoughts or advice would be greatly appreciated.

I started off looking at just the 24" barrels for maximum range. I came across the SASS and love everything about it except the fact that it's only 18". How much range am I giving up with those 6"?
Certain DPMS guns are chambered for 7.62x51 NATO and others for .308. At first I assumed that a gun chambered in 7.62 would shoot any .308 (like a gun chambered for 5.56 will shoot any .223) but read that this is not the case. Am I understanding that any rifle chambered in .308 will fire 7.62 and not the other way around like I originally thought?
My other concerns with the rifle are things like fluting, barrel threading, and trigger assembly. I could live without the fluting but I would sure like some sort of suppressor at the end of the barrel. I can't find any for sale that have pre-threaded barrels from the factory. I guess a bigger concern is the trigger assembly. Most people don't like the factory trigger assembly. How difficult is it to buy a new trigger (say JP 2 stage or one of the more expensive ones) and put it in myself. Is it something that will require any sort of gunsmithing?
Any thoughts or advice would be greatly appreciated.