Anyone know how to calculate the bc of a bullet
Just trying to work out the bc of a couple of bullets I use for bpcr long range
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Anyone know how to calculate the bc of a bullet
Just trying to work out the bc of a couple of bullets I use for bpcr long range
Drag Function form
Have fun.
Weight estimates seem to be bang on and from the few bullets I have checked, the estimated BCs seem to be reasonably close as well. It's an interesting tool to play around with and works for VLDs just as well as flat nose. Only thing I haven't been able to reproduce is elliptical nose projectiles.
Can a Labradar give the data to calculate BCs ?Quote:
Originally Posted by rambo-6mmrem
wikipedia has a series of formulars
Zero at 100
Shoot at 400 target
Measure drop in inches or moa
Use ballistic calculator and keep adding bc value until calculator shows actual measured drop
That will get you close
You would think so ehQuote:
Originally Posted by 7mmsaum
I have known drops all the way out to 805yards
When I use one of them (I think I used my 590yard dope)
And mv is known also
I added bc until it matched that number as you say
Came back with a bc of 0.750 lol I find it very hard to believe that a 334gn.375 round nose bullet has a .75 bc lol unless I’ve found the holy grail of bullets lol
Plus when I used that bc and tryed my other known dopes none of them matched they weren’t far off 4 or 5 moa though
With cast bullets being mostly in the near transsonic range or subsonic in many cases what effect does that have on the bc. I know Lee publish bc values for their molds and I suspect other makers might as well.