Quickload Optimal barrel timing calculator download

[kaduflyer]

anyone know where the download link is for this for quickload i have version 3.9 but cant find it there for barrel timing

 

[std7mag]

I didn't even know they had such a thing!

 

[Dgd6mm]

I believe it's Chris Long's barrel timing chart you are looking for.

 

[fatelvis]

Could someone explain how to determine the best barrel time?

 

[Bamban]

Could someone explain how to determine the best barrel time?

Try this, then explain to us.....

Optimal Barrel Time Paper
http://www.the-long-family.com/OBT_paper.htm

 

[Texas10]

Ouch! I read it, but I think I may have brained my damage.

 

[PhilKeil]

Ouch! I read it, but I think I may have brained my damage.

That is funny

 

[fatelvis]

Try this, then explain to us.....

Optimal Barrel Time Paper
http://www.the-long-family.com/OBT_paper.htm

Wow... Just wow.
Can anybody give me the Cliff notes version?

 

[Dgd6mm]

OBT, bullet exits muzzle, harmonics at the chamber end? Bullets travel in milliseconds, barrel length dictates travel time with the speed of the load. The reason for the question mark in the first sentence is I'm not sure if the explanation is written properly.

 

[Ccrider]

Watching.

 

[kaduflyer]

ha ive found it brill its on quickload

 

[Zero333]

http://www.the-long-family.com/OBT Table.pdf

 

[mikecr]

Where is OBT in what version of QuickLoad?
I've never seen it.

 

[Straightshooter1]

Where is OBT in what version of QuickLoad?
I've never seen it.

When you load the QL app, the OBT app is loaded as a separate application.

This is what it looks like:

The app icon looks like this:

And the app looks like this:





Addendum: Didn't now if a zip file could be downloaded, but here it is . . .

 

[pingunit]

Here's a link to the QuickLOAD OBT app --> http://castboolits.gunloads.com/showthread.php?291349-QuickLOAD-OBT-Tool

 

[mikecr]

Thank you. I did not know about it.

 

[fatelvis]

http://www.the-long-family.com/OBT Table.pdf


View attachment 1179478

Forgive my ignorance...
So every barrel has seven nodes, and that chart lets you know the barrel time of each one?

 

[PhilKeil]

There is more nodes that can be calculated. As I understand it is the 7 most used. There is a OBT tool that can calculate them.

 

[Ccrider]

Since @fatelvis has confessed his ignorance, I won’t leave him out there by himself. How do you use these numbers to make up your load?

 

[PhilKeil]

I have never used the app.
Cliff note version. But this is my way i use.
I carefully measure barrel and note length. place length in calculator and note the obt given. I quick load I make sure all inputs including barrel lengths is correct. Then i play with charge weight and seating depths to get the barrel time where i want
i pay very close attention not to exceed pressure.
please pm and i can try to assist further