is there a site that builds side by side ballistic reports?

[Mr. Friendly]

I'm interested in seeing several different cartridge ballistics side by side.

they have this kinda thing for headphone frequency responses...but can't say I've seen anything other than single cartridge load reports.

 

[Gatehouse]

Several ammunition companies allow you to compare cartridges on their websites. Federal ammunition does, IIRC. You can only compare the ammunition they produce, but they shoudl give you a good ballpark estimate.

 

[Danen]

Try http://gundata.org/ballistic-calculator/

 

[todbartell]

Search the app store for TodBartell's Ballistic Comparison Tool