Re: DTA 308, 22 inch or 26 inch?
1.) You will have no problems getting to 1k yards with the 22". Thats what I've got with a suppressor and my father and I were ringing steel with only a couple of misses when the wind changed all day long.
2.) My custom load on my 22" runs about 2600 on a 175 smk, according to QuickLoad when the barrel is a 26" it should run about 2689. So not a major difference in my opinion.
3.) My custom load goes subsonic around 1175 yards.