Yeah, not worried about 1K, took it there while living in Georgia but had a Nikon BuckMaster 6-18X40 setting on it then, and shooting 180gn NBT's. My goal is 1 mile, this year. I've got the space but the wind there is real world and I'm not quiet there yet. Soon, hopefully.
Feenix was correct. It is a clamp on from Witt Machine Company. Good people to work with, good product that is very effective. I have read some negative comments on here about clamp-on's (not to be confused with strap-on's) but believe me, this thing works! Shooting full house 210gn Berger loads feel about like 168 or 175gn pills in the .308Win. JohnnyK.