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Rifles, Bullets, Barrels & Ballistics Applied Ballistics



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Unread 02-07-2009, 03:43 PM
Bronze Member
Join Date: Nov 2006
Location: Hvolsvöllur, Iceland
Posts: 35
Re: quickload

Originally Posted by Jay Kyle View Post
There's some basic tricks to using it.
A. Try to build a load where Pmax and Z1 are on top of each other (in the graph), this gives the best groupings
B. Try to build a load with a minimum exit pressure, this will have the least bullet upset.
C. Keep the powder loaded in the brass just under or just over 100% (I use anywhere between 96%-105%), never right on 100%. If it's a 100%, some shells will be compressed and some not, they will have different burn characteristics.
D. After you've modeled a load, shot it and worked with it to get your groups tight, adjust the case volume setting in Quickload to get a matching muzzle velocity.
E. Once you've got a completed load, note the barrel time. This is your barrel harmonic time. Use this to create other loads for that barrel, match your barrel time and you should have a load that groups tightly.

Remember this is a modelling tool, and you must use it in conjunction with results from actual shooting really make it sing.

Is this what works for you. I am using the program now and it´s great. DIdn´t know about this.

For what stands Z1 ?
Magnús Ragarsson
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Unread 02-13-2009, 08:41 PM
Gold Member
Join Date: Oct 2006
Posts: 543
Re: quickload

I have been using the program for 9 years.
Before that I amassed ~ 50 load books.
I don't use the load books anymore.

The Quicktarget that comes with it is very helpful for long range.
It will show the trajectory of a boat tail bullet as much better than a flat tail.
The length of taper and smaller diameter can be custom entered if you have bullet not in the library.
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