Last night I went out to the outdoor range which is really set up for handgun (NRA 300, 2700 bullseye) and I shot my weatherby at 50 yards to zero the scope, Bushnell trophy 3x9 mounted on leupold dovetail rings and a two piece mount, I used winchester hunting ammo and I shot it offhand, kneeling, and leaning against a post(simulated tree). I fired 40 rounds of winchester power point .270 150grain, these are full power hunting rounds. I fired without a rest or bench because I wanted to approximate the way you would hunt with the rifle.
it took me 10 rounds to figure out where it was hitting on the target 10 rounds to zero it, and the next 20 rounds helped me establish a good flinch!!!!!
This morning I have a nice pruple bruise on my right shoulder and a brush burn!!!
Full power .270 has a substantial kick!!
The ammo I was using says its good for brown bear, and moose!!
The vanguard performed flawlessly, I was able to keep 20 rounds in the 2.25" bull of a 50yrd small bore rifle target.
kneeling I produced a 5 shot .75" group which was my best.
This is a very nice rifle, great for the money.