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Response to Pullo (Original post)

Sat Apr 27, 2013, 08:50 AM

32. yes virginia, there is a comparison

ezra: . I'd love for you to compare .223 Remington to .270 Winchester or .30-06 Springfield (deer calibers). An AR can't match the velocity or lethality of either.

Yes the .223 can match lethality, at shorter ranges, less than ~400 yds; greater than ~400 yds the .223's inertia is sapped reducing effectiveness - not momentum, momentum is immaterial, there is essentially nil momentum transfer to a human target, tho if it hits a fly there is significant transfer of mo.

ezra: FWIW, all rifle bullets either tumble or expand, due to basic physics;

After target entry, the .223 round tends to fragment into two main parts on about a 2/3 to 1/3 fracture (plus embedding smaller splintering 'shavings'), which creates two separate wound paths which both can cavitate creating more damage to surrounding internal tissue & organs. Larger bullets are not as prone to fragment.
Furthermore the reduced recoil in the ar15/m16 generally results in more accurate fire than with a larger rifle with greater recoil, due the tendency for rifle rise in the latter which makes accuracy suffer.

The 7.62x39mm M43 projectile does not generally fragment and has an unusual tendency to remain intact even after making contact with bone. The 7.62x39mm round produces significant wounding in cases where the bullet tumbles in tissue, but produces relatively minor wounds in cases where the bullet exits before beginning to yaw. In the absence of yaw, the M43 round can pencil through tissue with relatively little injury.

The original ammunition for the M16 was the 5.56x45mm M193 round. When fired from a 20″ barrel at ranges of up to 100 meters, the thin-jacketed lead-cored round traveled fast enough (above 2900 ft/s) that the force of striking a human body would cause the round to yaw (or tumble) and fragment into about a dozen pieces of various sizes thus created wounds that were out of proportion to its caliber. These wounds were much larger than those produced by AK-47 and they were so devastating that many considered the M16 to be an inhumane weapon.
As the 5.56mm round's velocity decreases, so does the number of fragments that it produces. The 5.56mm round does not normally fragment at distances beyond 200 meters or at velocities below 2500 ft/s, and its lethality become largely dependent on shot placement.

http://en.wikipedia.org/wiki/Comparison_of_the_AK-47_and_M16

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Pullo Apr 2013 OP
Chipper Chat Apr 2013 #1
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LineReply yes virginia, there is a comparison
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