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Old 09-30-2019, 03:25 PM
Mals9 Mals9 is offline
 
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Default Ballistics Calculator

Is there a calculator on-line that will give you the estimated velocity based on caliber, bullet, barrel length and powder load?

Mals
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Old 09-30-2019, 05:58 PM
rcolarco rcolarco is offline
 
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http://kwk.us/powley.html
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Old 10-07-2019, 11:55 AM
Mals9 Mals9 is offline
 
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Thanks
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Old 10-08-2019, 03:48 AM
Kerz Kerz is offline
 
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http://www.jbmballistics.com/cgi-bin...j_simp-5.1.cgi
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Old 10-08-2019, 04:36 PM
rcolarco rcolarco is offline
 
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That's a nice site, but it is external ballistics. Not what the OP asked.
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Old 10-12-2019, 06:15 PM
Unclenick Unclenick is offline
 
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Mals9,

Keep in mind the Powley computer was designed for old standby IMR powders and only for load densities of 85%-100% (no light or compressed loads). QuickLOAD covers most brands and individual powders and all loading densities, but it is not free and is not an online HTML script program. There is now a free German program called Gordon's Reloading Tool (register on line and download free, but not an online HTML program, either), but its powders are European, so it is useful if you need to make up a load with a Vihatavuori or Norma powder, for example, and you can cross the Shooter's World powders sold by Midsouth Shooter's Supply to their Lovex numbers. It is a good resource, and like QuickLOAD, it will teach you a lot about interior ballistics just getting used to working with it.
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Old 10-13-2019, 10:45 AM
rcolarco rcolarco is offline
 
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Quote:
Originally Posted by Unclenick View Post
Mals9,

Keep in mind the Powley computer was designed for old standby IMR powders and only for load densities of 85%-100% (no light or compressed loads). QuickLOAD covers most brands and individual powders and all loading densities, but it is not free and is not an online HTML script program. There is now a free German program called Gordon's Reloading Tool (register on line and download free, but not an online HTML program, either), but its powders are European, so it is useful if you need to make up a load with a Vihatavuori or Norma powder, for example, and you can cross the Shooter's World powders sold by Midsouth Shooter's Supply to their Lovex numbers. It is a good resource, and like QuickLOAD, it will teach you a lot about interior ballistics just getting used to working with it.
How true.

I have found the Powley equations most useful for selecting the optimal burn rate powder for a given cartridge and bullet combination. Once you have determined burn rate, powders close to the IMR selected will be efficient.

I do not blindly trust Powley's powder charges nor the predicted pressures. Actual loads come from a loading manual. However, Powley's equations considerably shorten the powder selection process.

These cautions are amply covered in the documentation on the site I put in my response.
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