Thread: Short barrel velocity

Guys i have a 7-08 cut to 18", i changed the sope on it last night and sighted it in again today im not reloading for it yet but used Winchester super x 140gn bullets today and found that it dropped 6" at 200m, 100m zero.
The ammo says 2800 muzzle velocity, my question since i dont have a chrony handy is, is a 400fps drop in velocity about right, JBS? agrees but Bullet flight has it at 300fps. I know some other distances would be good but no time today it was a quick test so a young girl can shoot a trophy buck tomorrow.

Cheers
Mal