Ammo Oracle

The History and Basic Design of .223 and 5.56 Ammunition
Performance of .223 and 5.56 Ammunition
Terminal Performance of .223 and 5.56 Ammunition
.223 and 5.56 Ammunition Testing
Selection of .223 and 5.56 Ammunition
Ammunition recommendations from the authors of the AR15.COM Ammo Oracle
Purchase and Storage of .223 and 5.56 Ammunition
Legal Questions
Miscellaneous .223, 5.56, and other Ammunition Questions
- You people are a bunch of (Fackler worshippers/idiots/jello fans/armchair theorists/mindless fools). How in the world can you expect me to believe (insert Ammo Oracle answer here)? You have all lost touch with the working man shooter with your lofty theories and ivory tower "science." I know for a fact that my super special homemade round will tear up badguys because it tears up potroast like there is no tomorrow. Why should I believe anything on here?
- None of this answers my question. Now what?

But doesn't M855 penetrate hard objects better than M193?

Introduction

It depends. At close ranges (up to 40-50 yards), M193 will penetrate thicker steel than M855, due to its increased velocity. Beyond 100 yards, M855's bullet construction starts paying off and it will penetrate better than M193. M855 also loses velocity more slowly than M193, with a cross-over point between 200 and 300 yards, beyond which M855 will have more velocity than M193.

FACTS:

Some penetration stats for M193 and 7.62 (M80): Thickness of material for positive protection against caliber ammo listed. Concrete (5,000 psi), 5.56: .5 inch, 7.62 and 30 cal, 7 inches. Wet sand, 5.56: 25 inches, 7.62 and .30, 36 inches. Packed or tamped earth, 5.56: 32 inches, 7.62 and .30: 48 inches.

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Ammo Oracle

But doesn't M855 penetrate hard objects better than M193?

Introduction

FACTS:

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