Good feedback folks, no doubt a Grendel is a nice round, had an eye on them a long time, but feel a 47 or CM will give that bit extra, not a speed freak, but figure 2700-2800 with a 120-130 is a sweet spot for my wants. Going PRC in a shorter will offset barrel length, on pure speed, but blast is a huge issue with me as I am not running a can. On the 600, I recall dumping a dog on the run - running wide open across a cut cotton field, about 250 yds, swung fast and had him one the far side of the FOV, put an 80 WW SP handload thru it's neck first shot, a Redfield 10 or 12x fixed was on board. Nice to get lucky! That 18.5 swung fast and it's stiff tube shot nickel sized groups all day, in 243. Had a 222 in same, dime sized 10 shot groups, and good for headshots on turtles to near 200-300 yds, using an M8 8x36, yes, mfg a short while, PA set at 200. Good info folks, appreciate all and any others who want to chime in.
I'm about decided a 17.5 - 19.5 carbine will be about right. A 6.5BR might get done as a former 7BR shot 2880 with 120s in a 21".....though hard to overlook the abundance and variety of Creedmoor ammo...
We all should eat Mo' Chicken! Lol. Love it.