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1/25/2018 7:38:29 AM
Posted: 11/21/2003 9:19:26 PM EST
I have a OA-93.

What is the best ammo for defense? Also, would anybody know velocity out of this 6.5" with 55gr. NATO load?

What is the best ammo (must work in the OA-93) to defeat obstacles?

Link Posted: 11/22/2003 6:23:44 AM EST
[Last Edit: 11/22/2003 6:26:52 AM EST by SBR7_11]
[url]http://www.ar15.com/forums/topic.html?b=3&f=16&t=174970[/url] Figure the velocity to be a little less than the 7.5" value. Define obstacles,,,, I can tell you that a 55gr Speer SP in front of 23gr of H322 out of the 7.5" will punch a hole clean thru a steel auto wheel at 50ft.
Link Posted: 11/22/2003 8:15:57 AM EST
I'd be looking for a .45ACP barrel.... [;)] -- Chuck
Link Posted: 11/24/2003 2:44:39 PM EST
Well, I define obstacle as ACF (i.e. armor clad felon). Velocity should be around 2150fps? I am guesstimating. I am leaning toward polymer tipped .223 rounds but recent discussion about >62gr. bullet fragmenting at lower velocities is kinda changing my mind. I will have to wait to read the threshold for fragmentation on those 100gr Open tip in terms of velocity to see if they are any useful... uhoh, I remebered I need a different twist rate...shoot!! I guess I'll stay with JHP and Polymer tips.
Link Posted: 11/24/2003 5:43:31 PM EST
[Last Edit: 11/24/2003 5:44:47 PM EST by SBR7_11]
Any typical vest is not intended to catch a rifle bullet,,, aerodynamic shape of bullet-velocity, will go right through.
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