6.5x55 velocity [Archive] - Savage Shooters

nrar15

07-23-2011, 06:57 PM

What muzzle velocity do I need to stay supersonic at 1000yrs with 140 and 142 SMK's in 6.5x55?
THANKS
Bob

Stu

07-23-2011, 09:23 PM

According to my Sierra program. 2200 fps will get you to 1048 yds. with the SMK's and 1079 yds. with the Berger's. At sea level.

nrar15

07-23-2011, 09:32 PM

Thanks Stu, for some reason I thought it was around 2600 fps

Stu

07-24-2011, 09:11 AM

Maybe someone else can chime in and check what i came up with because i thought it would be 2600 or so also. 2200 sounds slow to still be supersonic @ a grand. But, they are some slippery ass bullets (aerodynamically speaking.)
According to the same program they'll stay ss to almost 1600 yds. if you push them at 2900 fps.