Ballistic Calculator
Photo courtesy of Andrew Magill
Thanks for using the external ballistic calculator from GunData.org that accurately details all aspects of the bullets trajectory the millisecond it leaves the guns barrel.
Our calculator creates a proper ballistics trajectory chart that details range, drop, velocity, energy (fps), wind drift, and time. It takes into effect things like atmospheric conditions, wind, and even allows you to make projections shooting both up and down hill. No other free online calculator does. Bookmark Us Now! Hit CTRL+D Now.
| Ballistic coefficient calculator (if you know skip this) | |
| Bullet diameter | |
| Bullet shape | Spitzer [?] Boattail [?] Boattail HP[?] HP[?] Roundnose[?] |
| Ballistic coefficient | |
Spitzer
The Spitzer is a very popular and aerodynamic bullet shape. This bullet is also called a spire point bullet by some people. The Spitzer has a BC modifier of 1.642 making it the 2nd best of the 5 in terms of it's ability to travel through time and space. There are also spitzer boattails...which gets a bit confusing in terms of generic BC values. If your bullet look like a sptizer but has a boattail (slanted end) then choose the Boattail from the form above.
[Back to Calculator]Boattail
The boattail is a modification to the rear end of a bullet making the projectile much more air resistent. It has a BC modifier of 1.965 and this number is for a Boattail Spitzer and not a Boattail hollow point. The Boattail hollow point has a much lower BC modifier of somewhere around 1.6
[Back to Calculator]Boattail Hollow Point
The boattail hollow point combines the airodynamics of the boattail with the expansion of the hollow point. It therefore has a lower BC modifier than the spitzer boattail, but a much higher modifier than the standard Hollow Point somewhere around 1.6
[Back to Calculator]Hollow Point
The hollow point has a small hollow cavity that expands to increase the surface area of the projectile on impact. It's hard to see from the picture above, but easier to see in pistol rounds. It has a BC modifier of .875 making it the least aerodynamic.
[Back to Calculator]RoundNose
The roundnose is a bullet that looks like it sounds...it has a round nose. It has a BC modifier of 1 and is the standard for our calculations. It is slightly more aerodynamic than the hollow point but worse than the spitzer and boattails. People often get caught up in new fads and forget about the roundnose. It is a classic round that has no frills attached, and is reliable and stable.
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