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> .223/5.56 wounding capabilities
.223/5.56 wounding capabilities
@ 02:30 am (GMT) |
Jeffery OubreHello guys. I just found this website and forum and I'm extremely impressed. You'd be surprised how hard it is to find actual terminal data instead of just external ballistic data. So, on with my question. I am trying to find out what exactly someone could expect out of mil spec xm193 5.56 ammo using a 55 grain fmj. Now I understand that the fragmentation threshold is around 2500-2600 fps. I am running a 10.5" AR and I typically get somewhere around 2700fps at the muzzle. I have hit targets at 200-300 yards with this rifle but I'm wondering what it would do to soft tissue. Would it act similar to a .22 magnum in the 1800-2000 fps range? Any help is appreciated. |
Replies
@ 05:26 am (GMT) |
Alvaro Piqueras Alonso-LambertiRe: .223/5.56 wounding capabilitiesHi Jeffery;You will get pinhole woundings everytime, unless the twist was just enought for the bullet and it tumbles on impact. Another option that you can do is pull the bullets out and seat an expanding bullet or trim the meplats of the FMJ bullets. |
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@ 11:39 am (GMT) |
Jeffery OubreRe: .223/5.56 wounding capabilitiesDo you think a 1/7' twist would be fast enough to induce yaw on impact at those lower velocities? |
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@ 12:45 pm (GMT) |
Alvaro Piqueras Alonso-LambertiRe: .223/5.56 wounding capabilitiesHi Jeffery;1:14 twist is enough to stabilize that bullet. So, with 1:7 your bullet will have too much stabilization to tumble. FMJ ammo is not good to clean kill game. If you can, consider another ammo to use. If you have many FMJ loads, trim the meplat will be somewhat easy and quick. [b] |
@ 04:23 pm (GMT) |
Nathan FosterRe: .223/5.56 wounding capabilitiesHi Jeffery, it is as Alvaro has described. Thanks Alvaro.Please read the KB .223 info carefully. The information given regarding the propensity of the 55gr bullet to tumble then fragment is given for historical purposes only. Attempting to duplicate this performance is not straight forwards, requiring both a very slow twist and also a projectile that is somewhat inherently unstable. If you wish to pursue budget ammunition for hunting, please use Russian hollow point ammunition. As for velocity parameters, the Stoner type set up / load tumbled at 400 yards during our tests at roughly 1830-1850fps. |
@ 04:53 pm (GMT) |
Jim MoseleyRe: .223/5.56 wounding capabilitiesMy grand-niece who is "7" years old, shot her first deer last month using AR-15 223 with a 55 gr Hornady TAP ammo. To me the bullet looks like a SST rd. The deer was shot at 80 yds and dropped it in it's track. Her dad (cop) shot two more this season, all within 100 yds. The Tap ammo made for instance kills. Only one made for a complete pass thru. Mass destruction to internal organs. 16 inch barrel / 7 twist. All about using the correct bullet and staying within the parameters of the bullet's ability. |
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@ 05:27 pm (GMT) |
Jeffery OubreRe: .223/5.56 wounding capabilitiesI think I may have caused some confusion and I apologize. My question is more geared towards a fighting rifle capacity instead of hunting. For hunting I understand that I could simply use a longer barrel and solve many of my problems. However, I'm running a 10.5" gun because I like shooting suppressed and shooting an unsuppressed 5.56 inside without hearing protection is basically a death sentence for my hearing so in order to keep the noise down and still be able to maneuver indoors I need to keep it short. For my house I keep hornady 75gr superformance but I was organizing my xm193 and was curious what it's real limitations were out of my SBR. And thanks for the information you guys already provided. Great stuff. |
@ 12:54 am (GMT) |
Mike DavisRe: .223/5.56 wounding capabilitiesok...here is my PERSONAL take on the round..and Nathans info is pure gold....Ive shot a heap of animals that I would estimate are of similar makeup/resistance to what you are thinking. in my case Im talking wallabies in the 20-35kg bracket at ranges up to 350ish yards.... good vital area/spinal column shots provided quick kills with FMJ ammo of which the norinco was the best...soft point ammo provided much better results if shot placement wasnt spot on and by far the best ammo used was loaded with hornady SPSX projectiles which were very soft and caused massive jellyfied bruising. in the context you are talking they would probably be ideal as would most varmit type loads working on same theory as #9 birdshot being ideal.... |
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