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Ballistic 'Whiz Wheel' solver

 
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  #1  
Old 02-03-2011, 08:40 PM
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Ballistic 'Whiz Wheel' solver

I'd like to make everyone aware of a new ballistic solver called the 'Whiz Wheel':
Accuracy 1st: Sniper Training & Products




The Whiz Wheel is a non-electronic device that calculates ballistic solutions out to transonic range for any small arms bullet.

Features include:
*Density altitude calculator
*Meters/MILS or Yards/MOA output
*Trajectory prediction within 0.1 MIL or 0.25 MOA resolution
*Wind deflection for any speed and direction
*Spin drift
*Leads for engaging moving targets
*Corrections for inclined shooting
*Ability to 'true' the solution for variations in MV or BC

The tan colored sleeve is general, meaning it works with all wheels. The wheels are interchangeable laser engraved plastic that are custom made for your specific bullet, MV, sight height, and twist rate. Each wheel provides a full solution for a single round. Different wheels are required for each new round.

Solving the wheel is very simple. Start by solving the density altitude (DA) with the small wheel, or getting it from a Kestrel. Then line up the DA with the range, and the wheel outputs drop. The drop can be corrected for incline via the table on the back of the sleeve. The back of the whiz wheel also calculates the lateral solution elements including wind, spin drift, and moving target leads.

I was heavily involved in the development of this wheel and can vouch for the accuracy of the solutions which are generated with a point mass solver and measured G7 BC's. Furthermore I'll be available to answer questions about the whiz wheel on this thread.

Contact for ordering the Ballistic Whiz Wheel can be found in the above linked website.

-Bryan
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  #2  
Old 02-03-2011, 08:55 PM
gbp gbp is offline
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Re: Ballistic 'Whiz Wheel' solver

OK, I'll bite and see where this takes us
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  #3  
Old 02-19-2011, 11:39 AM
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Posts: 52
Re: Ballistic 'Whiz Wheel' solver

This is interesting. It looks like you can get it with several "generic" wheels or it can be ordered with a custom wheel calibrate to one's exact setup? The idea of this seems excellent to me, no messing around with PDA's, dead batteries, etc. No electronics to break. With a custom wheel will this produce the same results for a given firing solution as your ballistic software? How quickly can the firing solution be determined? It seems like it would be faster than typing into a PDA.

It is a little pricey but I may have to break down and try one...
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Old 02-19-2011, 03:46 PM
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Re: Ballistic 'Whiz Wheel' solver

A couple more questions:

Can this be set up with drops corrected for scope adjustment errors?

I assume it only is accurate to transonic ranges because it relies on density altitude instead of using temperature?
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  #5  
Old 02-19-2011, 05:00 PM
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Re: Ballistic 'Whiz Wheel' solver

A custom wheel can be produced according to your specific setup (bullet BC, velocity, sight height, etc). The solution is produced with a point mass solver, measured G7 BC's, and is accurate to within 1 click out to the range where the bullet slows to transonic speed.

Errors in scope adjustment have to be corrected for outside this device; it outputs true MOA or MILS only.

There is a learning curve, but once you've learned how to work with the device, it's quicker to get a basic solution than an electronic PDA. An exception might be if you're shooting at high angles. The correction for inclined shooting requires some mental interpolation.

-Bryan
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Author of: Applied Ballistics for Long Range Shooting
And: Accuracy and Precision for Long Range Shooting

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  #6  
Old 02-19-2011, 09:54 PM
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Re: Ballistic 'Whiz Wheel' solver

Quote:
Originally Posted by bsl135 View Post
A custom wheel can be produced according to your specific setup (bullet BC, velocity, sight height, etc). The solution is produced with a point mass solver, measured G7 BC's, and is accurate to within 1 click out to the range where the bullet slows to transonic speed.

Errors in scope adjustment have to be corrected for outside this device; it outputs true MOA or MILS only.

There is a learning curve, but once you've learned how to work with the device, it's quicker to get a basic solution than an electronic PDA. An exception might be if you're shooting at high angles. The correction for inclined shooting requires some mental interpolation.

-Bryan
Cool my pdas keed croking anyhow and I refuse to pay 600+ for one of them high end units
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  #7  
Old 02-19-2011, 10:34 PM
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Re: Ballistic 'Whiz Wheel' solver

Very Interesting,

I will probably have to try one of these out!
I am sure I'll have more questions later.

Thanks for the info
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