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Originally Posted by goodoboy
Need some help with terminology.
Hornadyle.com - 55 gr. TAP URBAN(R)
1. What does "when the probability for barrier penetration is low" mean?
"Barrier" in this case and the one below refers to what's called 'chance barricades'. Interior walls, doors, glass, auto glass & sheet metal, plywood and limbs of the body. And "yes" to less chance of exiting the body.
2. What does " prevents over penetration on non-barrier engagement mean? Does this mean less change of bullet exiting the body? |
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3. What does " this bullet a great choice when collateral risk is high." mean?
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Collateral risk means innocent people are around.
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4. What does barrier penetration mean?
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Means goes through the barriers explained in questions 1 & 2 and will still expand as designed. Note: the barriers in question are those used in the FBI ammo tests. These include auto glass, 3/4 inch plywood and a simulated auto body metal panel.
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5. Best Choices for Self Defense Ammo On this link, what does "If barrier penetration is NOT an important factor AND your rifle can stabilize them" mean? and what does "If barrier penetration IS an important factor" mean?
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Stabilize means the rifling twist in your rifle will rotate the bullet at a rate that allows the bullet to fly straight. A rifling twist too slow for the length/weight of the bullet will result in the bullet tumbling in as little as 25 yards. Where it's gonna land is a guess. 1-9 rifling twist will stabilize the Horanaday 75 gr HPBT match bullet, it will NOT stabilize the A-Max version of the same bullet weight. Hornaday went to plastic tipped bullets in their current law enforcement ammunition. No idea if 1-9 twist will stabilize them (at 75 grains, 55 should be no problem). The plain HPBT is still available in another ammunition line.
If barrier penetration is not an issue suggests the bullet is not designed to penetrate barriers without degradation of performance.
Barrier blind is ammo you can use to shoot through the barriers and still effectively perform as designed.
DUDE! You're way overthinking this. Ain't no 5.56 ammo you're gonna find isn't gonna go through daywall. Even two complete walls (4 sheets drywall). NONE (that's not military specialty ammo) of it is gonna go through a brick.