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4/21/2006 11:29:17 AM EDT
I am working on a research paper evaluating the effectiveness of the .223 for use in an urban enviroment.  I have done ballistics gel tests already but need some ARFCOM help.

I tested with the following cartridges from a 20" barrel at 60 degrees F:

M855
Winchester Super-X 64gr Power Point
Hornady TAP .223 75gr
Federal Classic 55gr Bonded Soft Point
Remington UMC 55gr FMJ

It is very neccessary to get the muzzle velocity for each of these as well as the kinetic energy in ft/lbs.

If anyone has done data themselves on these rounds, or knows where I can find this information, I would greatly appreciate it!

Thanks!
4/21/2006 11:32:41 AM EDT
[#1]
The only relevant data I have is:

Ammo: Rem. L223R3
Barrel: 7.5"
Distance: 5ft
Mean Velocity: 2341fps
Std.Dev.: 39.4fps

Not all that helpful, I know, but I don't shoot the ammo you mentioned very much. I have more data for Win White Box, Win Q3131A and Fed Am Eagle, but you aren't interested in them.

You could try finding published data from the manufacturer, but often such data is out of long test barrels. Altitude and temperature are also significant factors, as is the firearm being used.

The easiest way for you to get the exact data you need  would be to shoot each ammo you are interested over a chrono yourself using your chosen gun/barrel length. If you like, you can send it to me and I will chrono the ammo for you
4/21/2006 11:46:21 AM EDT
[#2]
Thanks for the help.  I edited my first post a bit with barrel length and temperature information.

I'll see what I can find online with these rounds yet still.  If I hit a dead end with some of these I may take you up on that offer.
4/21/2006 11:48:36 AM EDT
[#3]
Dude, I have a 20" AR15 that I will gladly shoot your ammo through, and I have a a chronograph to measure the velocity, but there is no way in hell I am going to get temperatures as low as 60degF here in AZ until about Xmas
4/21/2006 11:50:25 AM EDT
[#4]
Temps won't matter too much to me.  I need relevant data more than specifical test data.
4/21/2006 1:07:44 PM EDT
[#5]
You really should have gotten the MV data at the same time you did gel testing - to be most accurate.  Different guns, elevations, temps will produce slightly different results.
4/21/2006 1:26:16 PM EDT
[#6]
I understand that best case would have been my rifle at the time of testing.  Because I cannot go back in time, the best thing for me to do is test all of the ammuintion out of the same 20" barrel.  It is more important to me to have data showing how each bullet performs relative to each other rather than specific information.
4/21/2006 1:44:07 PM EDT
[#7]
IMI M855 fired from a Colt 20" barrel at a temp of 76 degrees F.

muzzle velocity:  3112 fps

KE=1183 ft-lbs
4/21/2006 1:50:19 PM EDT
[#8]
75 grain Hornady TAP fired from a Colt 20" barrel at 77 degrees F.  (average of three different lots)

muzzle velocity:  2677 fps

KE=1198 ft-lbs
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