I have a rem 700 short action (308 bolt face) and a hawk hill 6.5 blank. I'm looking to build a longish (600 yards max) range coues deer/antelope/range rifle, I have my 300 win mag for bigger stuff and longer range. Is there any benefit to the 6.5x47 now that there is small rifle primer brass for the creed? I reload and was thinking of shooting the 130-140 class bullets. 260 rem is also and option. I really want a 6.5x284 but need a LA for that and I'm not going to buy one right now. In the future I was thinking of also doing a 6.5 grendel AR build. I'm open to suggestions.