no chrono

R

retiredcpo

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Joined
Jul 19, 2009
Messages
582
Location
Idaho
ok Im fairly new to this
is there a way I can figure my approx velocity with out a chronograph
Im shooting a 7mm rem mag with a 160 accubond over 62 gr of RL22 winchester mag primers and case
thanks
retiredcpo
 
M

Moman

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Joined
Feb 7, 2008
Messages
868
Location
Sonoma County, CA
Some of the load programs that members are using can apparently get it pretty close. Do you use Exbal? If so, you can test your drops at various ranges and validate the trajectory. This will adjust your velocity.
 
R

retiredcpo

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Joined
Jul 19, 2009
Messages
582
Location
Idaho
nope no exbal not even sure what that is
 
J

J E Custom

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Joined
Jul 29, 2004
Messages
10,718
Location
Texas
The way most do it is to shoot at 100yards,200yards,300yards,400yards and 500yards
using the same point of aim and then compare the drop to ballistic chart for that brand
and weight of bullet.

And if you can check it at longer distance it will help to get a more true velocity.

It is not as good as a chronagraph but it will get you close.

J E CUSTOM
 
Buffalobob

Buffalobob

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Joined
Jun 12, 2001
Messages
5,095
Location
Potomac River
Send me a PM with your email address in it and I will send you a sheet of instructions on how to do it.

Jim
 

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