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Wikipedia

QuickLOAD

QuickLOAD is an internal ballistics predictor computer program for firearms.

QuickLOAD
Developer(s)Hartmut G. Brömel
Stable release
3.9
Operating systemMicrosoft Windows
Available inGerman and English
Websitewww.quickload.co.uk 

For computations apart from other parameters,

must be entered for calculating an estimated maximum chamber gas piezo pressure, muzzle velocity, muzzle pressure and other relevant data.

QuickLOAD database

QuickLOAD has a default database of predefined bullets, cartridges and propellants. The database of the more recent versions of QuickLOAD also include dimensional technical drawings of the predefined cartridges and for most cartridges photographic images. Data can later be imported or entered by the user to expand the programs database. The default database contains more than 2,500 projectiles, over 1,200 cartridges, over 225 powders and dimensional drawings and photos of many cartridges. The default database however contains some errors, so measuring sizes, weights and case capacities of components intended for use and if appropriate correcting default provided data is wise to avoid surprises and make the predictions more accurate.

Some default data is incomplete, since it was not released by the manufacturer or when components that are neither officially registered with nor sanctioned by C.I.P. (Commission Internationale Permanente Pour L'Epreuve Des Armes A Feu Portative) or its American equivalent, SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) come into play. Such wildcat cartridges have no official dimensions nor other performance related specifications.

Cartridge case volume establishment

Besides the standard entered information, the actual internal volume or cartridge case capacity of the used cases is an important parameter for QuickLOAD to obtain usable predictions. The internal case volume has to be established by weighing empty once-fired cartridge cases from a production lot, then filling the cases with fresh or distilled water up to the point of overflowing and weighing the water-filled cases. The added weight of the water is then used to establish the liquid volume and hence the case capacity. This liquid volume measurement method can be practically employed to about a 0.01 to 0.02 ml or 0.15 to 0.30 grains of water precision level for firearms cartridge cases. A case capacity establishment should be done by measuring several fired cases from a particular production lot and calculating their average case capacity. This also provides insight into the uniformity of the sampled lot.

A water case capacity test measurement of 4 fired .35 Whelen Remington cases resulted in:

Measured case capacity (ml) 4.57 4.54 4.52 4.60
Average H2O case capacity (ml) = 4.56

The case capacity of different cartridge brands of a particular chambering can significantly vary between cartridge case manufacturers and even production lots. The default database of QuickLOAD for example contains 5 different .300 Winchester Magnum case capacities for 5 different cartridge case manufacturers.

Practical use and limitations

QuickLOAD mainly helps reloaders understand how changing variables can affect barrel harmonics, pressures and muzzle velocities. It can predict the effect of changes in ambient temperature, bullet seating depth, and barrel length. However, QuickLOAD has limitations, as it is merely a computer simulation. It does not account for different brands of primers for example, and its ability to predict the effect of seating bullets into the rifling is crude. A QuickLOAD user most certainly should not just "plug in" a cartridge, bullet and powder and use that load, assuming it is safe. It is good practice to double- or triple-check QuickLOAD's output against reliable load data supplied by the powder producing companies. Of course the best way to check firearms cartridge loads are actual proof test measurements at certified test facilities.

QuickTARGET external ballistics predictor computer program

The QuickLOAD interior ballistics predictor program also contains the external ballistics predictor computer program QuickTARGET. QuickTARGET is based on the Siacci/Mayevski G1 model and gives the user the possibility to enter several different BC G1 constants for different speed regimes to calculate ballistic predictions that more closely match a bullet's flight behaviour at longer ranges in comparison to calculations that use only one BC constant.

In 2008 QuickTARGET Unlimited was introduced as an additional part of the QuickLOAD/QuickTARGET 3.4 version software suite. QuickTARGET Unlimited is an enhanced beta version of QuickTARGET that can take several long range factors into account to make the external ballistic predictions more accurate. For this it can use several drag models; G1, G5, G7, etc. and a custom drag function that uses drag coefficient (Cd) data. In January 2009 the Finnish ammunition manufacturer Lapua published Doppler radar tests derived drag coefficient data for most of their rifle projectiles.[1][2] The predictive capabilities of the custom mode are based on actual bullet flight data derived from Doppler radar test sessions. With this data engineers can create algorithms that utilize both known mathematical ballistic models as well as test specific, tabular data in unison. Besides the data for Lapua bullets QuickTARGET Ultimate also contains Cd data for some other projectiles that are often used for extended range shooting.

Computer requirements

The QuickLOAD/QuickTARGET 1.x and 2.x versions were supplied on a diskette. Since version 3.0, QuickLOAD/QuickTARGET is supplied on a CD-ROM and requires Microsoft Windows 98 or a newer Microsoft Windows operating system version. The (2011) QuickLOAD/QuickTARGET 3.6 version is compatible with the Microsoft Windows 7 operating system. The software suite can be used with metric units and imperial units/United States customary units and was created and is maintained by mechanical engineer Mr. Hartmut G. Brömel in Babenhausen, Germany. QuickLOAD is distributed in the United States, Canada and Mexico by NECO (Nostalgia Enterprises Company) and in South Africa, Australia, New Zealand and Europe except Germany, Czech Republic, Denmark, Finland and Ukraine by JMS Arms.

References

  1. ^
  2. ^ Lapua bullets CD data (zip file)[permanent dead link]

External links

  • 6mmBR.com QuickLOAD Review & User's Guide
  • Desktop Data by Craig Boddington, Guns & Ammo Magazine

quickload, internal, ballistics, predictor, computer, program, firearms, developer, hartmut, brömelstable, release3, 9operating, systemmicrosoft, windowsavailable, ingerman, englishwebsitewww, quickload, computations, apart, from, other, parameters, cartridge,. QuickLOAD is an internal ballistics predictor computer program for firearms QuickLOADDeveloper s Hartmut G BromelStable release3 9Operating systemMicrosoft WindowsAvailable inGerman and EnglishWebsitewww wbr quickload wbr co wbr uk For computations apart from other parameters the cartridge the projectile bullet the gun barrel length the cartridge overall length the propellant type and quantitymust be entered for calculating an estimated maximum chamber gas piezo pressure muzzle velocity muzzle pressure and other relevant data Contents 1 QuickLOAD database 2 Cartridge case volume establishment 3 Practical use and limitations 4 QuickTARGET external ballistics predictor computer program 5 Computer requirements 6 References 7 External linksQuickLOAD database EditQuickLOAD has a default database of predefined bullets cartridges and propellants The database of the more recent versions of QuickLOAD also include dimensional technical drawings of the predefined cartridges and for most cartridges photographic images Data can later be imported or entered by the user to expand the programs database The default database contains more than 2 500 projectiles over 1 200 cartridges over 225 powders and dimensional drawings and photos of many cartridges The default database however contains some errors so measuring sizes weights and case capacities of components intended for use and if appropriate correcting default provided data is wise to avoid surprises and make the predictions more accurate Some default data is incomplete since it was not released by the manufacturer or when components that are neither officially registered with nor sanctioned by C I P Commission Internationale Permanente Pour L Epreuve Des Armes A Feu Portative or its American equivalent SAAMI Sporting Arms and Ammunition Manufacturers Institute come into play Such wildcat cartridges have no official dimensions nor other performance related specifications Cartridge case volume establishment EditBesides the standard entered information the actual internal volume or cartridge case capacity of the used cases is an important parameter for QuickLOAD to obtain usable predictions The internal case volume has to be established by weighing empty once fired cartridge cases from a production lot then filling the cases with fresh or distilled water up to the point of overflowing and weighing the water filled cases The added weight of the water is then used to establish the liquid volume and hence the case capacity This liquid volume measurement method can be practically employed to about a 0 01 to 0 02 ml or 0 15 to 0 30 grains of water precision level for firearms cartridge cases A case capacity establishment should be done by measuring several fired cases from a particular production lot and calculating their average case capacity This also provides insight into the uniformity of the sampled lot A water case capacity test measurement of 4 fired 35 Whelen Remington cases resulted in Measured case capacity ml 4 57 4 54 4 52 4 60Average H2O case capacity ml 4 56The case capacity of different cartridge brands of a particular chambering can significantly vary between cartridge case manufacturers and even production lots The default database of QuickLOAD for example contains 5 different 300 Winchester Magnum case capacities for 5 different cartridge case manufacturers Practical use and limitations EditQuickLOAD mainly helps reloaders understand how changing variables can affect barrel harmonics pressures and muzzle velocities It can predict the effect of changes in ambient temperature bullet seating depth and barrel length However QuickLOAD has limitations as it is merely a computer simulation It does not account for different brands of primers for example and its ability to predict the effect of seating bullets into the rifling is crude A QuickLOAD user most certainly should not just plug in a cartridge bullet and powder and use that load assuming it is safe It is good practice to double or triple check QuickLOAD s output against reliable load data supplied by the powder producing companies Of course the best way to check firearms cartridge loads are actual proof test measurements at certified test facilities QuickTARGET external ballistics predictor computer program EditThe QuickLOAD interior ballistics predictor program also contains the external ballistics predictor computer program QuickTARGET QuickTARGET is based on the Siacci Mayevski G1 model and gives the user the possibility to enter several different BC G1 constants for different speed regimes to calculate ballistic predictions that more closely match a bullet s flight behaviour at longer ranges in comparison to calculations that use only one BC constant In 2008 QuickTARGET Unlimited was introduced as an additional part of the QuickLOAD QuickTARGET 3 4 version software suite QuickTARGET Unlimited is an enhanced beta version of QuickTARGET that can take several long range factors into account to make the external ballistic predictions more accurate For this it can use several drag models G1 G5 G7 etc and a custom drag function that uses drag coefficient Cd data In January 2009 the Finnish ammunition manufacturer Lapua published Doppler radar tests derived drag coefficient data for most of their rifle projectiles 1 2 The predictive capabilities of the custom mode are based on actual bullet flight data derived from Doppler radar test sessions With this data engineers can create algorithms that utilize both known mathematical ballistic models as well as test specific tabular data in unison Besides the data for Lapua bullets QuickTARGET Ultimate also contains Cd data for some other projectiles that are often used for extended range shooting Computer requirements EditThe QuickLOAD QuickTARGET 1 x and 2 x versions were supplied on a diskette Since version 3 0 QuickLOAD QuickTARGET is supplied on a CD ROM and requires Microsoft Windows 98 or a newer Microsoft Windows operating system version The 2011 QuickLOAD QuickTARGET 3 6 version is compatible with the Microsoft Windows 7 operating system The software suite can be used with metric units and imperial units United States customary units and was created and is maintained by mechanical engineer Mr Hartmut G Bromel in Babenhausen Germany QuickLOAD is distributed in the United States Canada and Mexico by NECO Nostalgia Enterprises Company and in South Africa Australia New Zealand and Europe except Germany Czech Republic Denmark Finland and Ukraine by JMS Arms References Edit Lapua Bullets Drag Coefficient Data for QuickTARGET Unlimited Lapua bullets CD data zip file permanent dead link External links Edit6mmBR com QuickLOAD Review amp User s Guide RealGuns com QuickLOAD Review Desktop Data by Craig Boddington Guns amp Ammo Magazine Retrieved from https en wikipedia org w index php title QuickLOAD amp oldid 1088563403, wikipedia, wiki, book, books, library,

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