Marlin Firearms Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
225 Posts
Discussion Starter #1
I've been reading & learning here & elsewhere re: 45-70 load development & not going too fast. However, most reports & observations have not made it clear what the terminal velocity was in their findings.

At a muzzle velocity of 1500fps with my cast 405g 'boolit', what is the terminal velocity at 50, 100, 150, 200 yds?
 

·
Registered
Joined
·
452 Posts
If you know the muzzle velocity. and the ballistic coefficient , any reloading manual will have this information at the back.
 

·
Registered
Joined
·
2,484 Posts
In addition to reloading manuals, there are any number of online ballistics calculators that will give you remaining velocity and trajectory information given the specifics of the load. They range from complicated and detailed to simple and straightforward. A quick Google search yields a couple of popular ones:

http://www.jbmballistics.com/ballistics/calculators/calculators.shtml
[URL="http://www.cleverinsite.com/ballistics/calcs.asp"]http://www.cleverinsite.com/ballistics/calcs.asp

G
e[/URL]t the ballistic coefficient from the bullet manufacturer, or many of these calculators allow you to estimate it if you have factory trajectory data.
 

·
Registered
Joined
·
40 Posts
A chronograph would tell you, just be careful ya don't shoot the graph! Lol

Lol sorry to bring up an old thread, just noticed its age!!
 
1 - 4 of 4 Posts
Top