Proposed change for range affect on damage

[Desert Mariner]

Originally Posted by nuke11

Nice, I like them.

The only problem I see is the name of the Uzi carried over from the book. The Uzi No2 Mk B was a civilian version with a 16' barrel imported into the US from 1983 to 1989 and most where semi-auto only. It is not what would be considered "cool" to have in TMP as a player. Just the Name of Uzi is fine.

Duly noted regarding the Uzi. The attached is my current SMG/PDW line-up. Original 4E weapons have an orange header for clarity. I have separate files for MGs, Pistols & Revolvers, Rifles & Carbines and Shotguns (00 buck only thus far).

[mmartin798]

I have been looking for some terminal ballistics data for shotguns. This is the best-recorded results with well-documented methods that I have seen thus far. It is a good starting place.

http://www.brassfetcher.com/Shotguns.../Buckshot.html

[Desert Mariner]

Another site that helps with shotgun shot ballistics:
http://www.ctmuzzleloaders.com/ctml_...allistics.html

[mmartin798]

Originally Posted by Desert Mariner

Duly noted regarding the Uzi. The attached is my current SMG/PDW line-up. Original 4E weapons have an orange header for clarity. I have separate files for MGs, Pistols & Revolvers, Rifles & Carbines and Shotguns (00 buck only thus far).

I just compared my P90 stats to yours and found a discrepancy on our E-Factors. I did some research and I think I found the source. The muzzle velocity you used, according to S&B's datasheet, was based on a 4.75" barrel. That is the length of the FN Five-seveN. The P90 has a 16.04" barrel. Looking at the specs for the SS197SR, fired from the Five-seveN has the same velocity as the S&B round. Assuming that both rounds perform similarly, fired from the P90 would have a muzzle velocity of 2100 f/s or 640 m/s. That would increase your E-Factor to 9.

The biggest source of the discrepancy though is the choice of the round. I assume the Project has access to restricted rounds like the SS190. That is what give me an E-Factor of 11.

[Desert Mariner]

Originally Posted by mmartin798

The biggest source of the discrepancy though is the choice of the round. I assume the Project has access to restricted rounds like the SS190. That is what give me an E-Factor of 11.

Since that last post, I tracked down stats for the SS190. V0 = 651m/s making it 684 m/s when fired from the P90 for an E-Factor of 11, which matches your figures.

I also found an error in my Excel file where I used "round" vice "roundup" in one calculation and am in the process of rerunning all of my range cards.

EDIT (9/20/19) - The rounding error was only impacting E-Factor based on muzzle velocity. The down range values were calculating properly.