Differences

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--- arma_3:ammo:556x45 [2026/01/04 05:36] – dragonfly
+++ arma_3:ammo:556x45 [2026/01/04 06:14] (current) – old revision restored (2026/01/04 06:04) dragonfly
@@ Line 1: / Line 1: @@
 ====== Ammo: 5.56x45mm NATO ======
-====== Technical Guide: 5.56x45mm NATO (RHS: USAF) ======
+===== Overview =====
-<wrap info>
+The 5.56x45mm NATO is the primary intermediate cartridge for US Forces. It is characterized by low recoil and high velocity. However, its effectiveness relies on **fragmentation** and **penetration**, both of which vary wildly between the variants listed below.
-**Quick Summary:** The 5.56x45mm is the standard US intermediate cartridge. In the RHS/ACE3 environment, its effectiveness is entirely dependent on **velocity** and **projectile construction**.
-</wrap>
-===== 1. Modern Combat Variants =====
+===== Modern Combat Rounds =====
-These are the primary rounds found in modern US Army and USMC loadouts (Post-2010).
-<wrap box>
 ==== M855A1 EPR (Enhanced Performance Round) ====
-* **Visual ID:** Bronze/Silver Exposed Tip
-* **Best For:** General Purpose Infantry
-The "EPR" is the current gold standard. It features a hardened steel penetrator that excels at punching through body armor and light barriers (wood/drywall).
-**Community Note:** This should be your "Default" magazine choice.
-</wrap>
-<wrap box>
+  * **Visual ID:** Bronze/Silver Exposed Tip
+  * **Role:** Standard Issue (Current) The "EPR" is the modern solution to the shortcomings of older 5.56mm rounds. It features a lead-free slug with a hardened steel penetrator.
+  * **Pros:** Best-in-class general penetration; "barrier-blind" (maintains trajectory through glass/wood); consistent lethality against armored AI.
+  * **Cons:** Higher chamber pressure; slightly more recoil than legacy rounds.
 ==== Mk318 Mod 0 (SOST) ====
-* **Visual ID:** Open Tip / Lead Cliff
-* **Best For:** CQB / Short-Barreled Rifles (Mk18)
-Designed for "Barrier Blind" performance. It is less likely to deflect when shooting through car glass or plywood compared to the M855A1.
-</wrap>
-<wrap box>
+  * **Visual ID:** Open Tip / Lead Cliff
-==== Mk262 Mod 1 (OTM) ====
+  * **Role:** Carbine / Urban Optimized Developed for the USMC to improve performance in short-barreled weapons like the Mk18. It is designed to fragment on impact while the rear "solid" portion continues through cover.
-* **Visual ID:** Black Ring / Open Tip
+  * **Pros:** Optimized for CQB; excellent "stopping power" on unarmored targets.
-* **Best For:** Marksmen / Long-Range Engagements
+  * **Cons:** Ballistic coefficient is lower than M855A1; performance drops off past 300m.
-A heavy 77-grain round that maintains its energy at distance. It does not have a steel penetrator, so it relies on raw "Stopping Power" and high damage upon impact.
-</wrap>
-----
+==== Mk262 Mod 1 (SBLR) ====
-===== 2. Legacy & Special Purpose =====
+  * **Visual ID:** Black Ring / Open Tip
+  * **Role:** Long Range / Marksman A heavy 77-grain Match round. While it lacks a steel penetrator, its mass allows it to retain energy at much longer distances.
+  * **Pros:** Highest damage-per-shot in the 5.56 family; extremely stable in high-wind conditions; effective out to 700m.
+  * **Cons:** Lower muzzle velocity; poor performance against heavy plating.
-Commonly found in Cold War scenarios or specialized mission crates.
+===== Legacy & Specialty Rounds =====
 ==== M193 (Ball) ====
-The original 55-grain "Vietnam" round. It has extremely high muzzle velocity but lacks the weight or penetrator to defeat modern armor.
-  * <wrap alert>**Warning:** Almost zero effect against Level III/IV plates.</wrap>
+  * **Visual ID:** Plain / No Tip
+  * **Role:** Cold War / High Velocity The original 55-grain round for the M16A1. It relies on extreme velocity to "shatter" (fragment) upon impact.
+  * **Pros:** Very high muzzle velocity; devastating against unarmored "insurgent" type targets.
+  * **Cons:** Virtually zero penetration against modern body armor; loses effectiveness rapidly from short barrels.
 ==== M855 (Ball) ====
-The classic "Green Tip." It is a Jack-of-all-trades but a master of none. In modern missions, it often requires multiple center-mass hits to down armored AI.
+  * **Visual ID:** Green Tip
+  * **Role:** Legacy Standard (Pre-2010) The "Penetrator" round used for decades. It features a small steel insert.
+  * **Pros:** Plentiful in most missions; decent mid-range performance.
+  * **Cons:** Infamous for "over-penetration" (passing through targets without damage); struggles against modern Level IV plates.
 ==== M995 (AP) ====
-Black-tipped armor-piercing rounds.
-  * <wrap important>**Usage:** Save these for targets wearing heavy "Juggernaut" style vests or light-skinned vehicles.**</wrap>
-----
+  * **Visual ID:** Black Tip
+  * **Role:** Specialized Anti-Armor Utilizes a tungsten carbide core specifically designed to defeat hardened targets.
+  * **Pros:** Can penetrate heavy body armor and light vehicle skin (unarmored trucks/technical rails).**Cons:** Very low "flesh damage"; rare availability.
-===== 3. Comparison & Ballistics =====
+===== Tracers & Signalling =====
-^ Variant ^ Penetration ^ Damage ^ Opt. Range ^ Muzzle Vel. ^
+^ Type ^ Matching Round ^ Notes ^
-| **M855A1** | High | High | 450m | 915 m/s |
+| **M196** | M193 | Red/Orange tip. Legacy tracer with shorter burn time. |
-| **Mk318** | Medium | Very High | 250m | 890 m/s |
+| **M856** | M855 | Standard red tracer. Consistent burn. |
-| **Mk262** | Low | Extreme | 750m | 840 m/s |
+| **M856A1** | M855A1 (EPR) | Modern tracer. Features "Dim Trace" to prevent blinding the shooter. |
-| **M193** | Very Low | High | 200m | 990 m/s |
-| **M995** | Extreme | Low | 400m | 1010 m/s |
-----
+===== Ballistic Comparison Table =====
-===== 4. Deployment Recommendations =====
+^ Round ^ Weight ^ Velocity ^ Armor Pen. ^ Soft Damage ^ Ideal Range ^
+| **M193** | 55 gr | Extreme | Very Low | High | 0 - 200m |
+| **M855** | 62 gr | High | Low | Medium | 0 - 300m |
+| **M855A1** | 62 gr | High | High | High | 0 - 450m |
+| **Mk318** | 62 gr | Medium | Medium | Very High | 0 - 250m |
+| **Mk262** | 77 gr | Moderate | Low | Extreme | 300 - 700m |
+| **M995** | 52 gr | High | Extreme | Low | 0 - 400m |
-<wrap center 80%>
+===== Deployment Summary =====
-<wrap half>
-<wrap notice>
-### Standard Infantry
-* **Primary:** M855A1 (EPR)
-* **Tracer:** M856A1 (Dim Trace)
-* **Engagement:** 0 - 400m
-</wrap>
-</wrap>
-<wrap half>
+  * **General Infantry:** Standardize on **M855A1 (EPR)**. It is the most reliable round for 90% of Arma 3 engagements.
-<wrap notice>
+  * **Point-men / Breachers:** Use **Mk318** for superior performance through doors and windows.
-### Recon / Marksman
+  * **Designated Marksmen:** Use **Mk262** for a flatter, more predictable trajectory at long range.
-* **Primary:** Mk262 Mod 1
+  * **Historical Scenarios:** Use **M193** for Vietnam/80s era kits, but aim for the head or unarmored limbs.
-* **Tracer:** None (Stealth)
-* **Engagement:** 300 - 700m
-</wrap>
-</wrap>
-</wrap>
-<wrap clear></wrap>
-----
-**Guide Maintainer:** Community Admin
-**Last Updated:** %%DATE%%
-**Related Guides:** [[guides:ammo:762x51|7.62mm NATO]] | [[guides:ammo:545x39|5.45mm RU]]