Re: Groundhogs beware!
Its namesake was rocky gibbs, he developed 7 or 8 cartridges from 24 to 338 all based on a 06 case improved to the absolute max.
its a 30/06 with the shoulder pushed forward far enough that it has one caliber of neck length and sharpened to 35 degrees, this one was reamed to 270 win length so it'll have a longer neck.
a lapua 139 scenar(bc .615) at 3300 fps has the same trajectory to within 1/2 MOA of my 7mm AM 160 accubond at 3500 fps. to 800 yds.
Born to Hunt, Forced to Work!