>>14918078

>You have to be 18 to post here.

>>14917969

>Wasn't 5.56. was 223. Earlier testimony stated the casings found near the first dude shooting, was .223

Differences between the two are small but can have a large impact on performance, safety and weapon function.

The first difference is the higher pressure level of the 5.56 NATO cartridge which runs at approximately 58,000 psi. A 223 Remington is loaded to approximately 55,000 psi.

The second and most important difference between the two is the fact that a 5.56 NATO chamber has a .125” longer throat. This allows approximately one more grain of powder to be loaded into a 5.56 NATO cartridge; this is what gives it higher performance than its 223 Remington cousin.

The biggest problem with these differences is when firing a 5.56 NATO cartridge in a rifle chambered for 223 Rem. Due to the longer throat that the NATO chamber employs this combination will cause a 223 chambered weapon to run at approximately 65,000 psi or more. This is 10,000 psi higher than the 223’s normal functioning pressure of 55,000 psi. This is NOT safe and will cause primers to back out, or worse, cause harm to the operator, the rifle, or both.

The reverse of this is firing a 223 Rem cartridge in a 5.56 NATO chambered rifle. Due to the throat difference between the two chambers a 223 Rem cartridge may not work optimally in a 5.56 NATO chambered weapon. The cause of this is the lack of pressure built by a 223 Rem cartridge fired from a 5.56 NATO chamber. The 223’s 55,000 psi will not be attained and therefore velocity and performance are hurt. Problems start occurring when this combination is fired out of a 5.56 NATO chambered rifle with a 14.5” (or shorter) barrel. The lower powder charge of the 223 round coupled with the pressure drop that occurs when it is fired in a the 5.56 NATO chamber will cause the rifle to cycle improperly. NATO chambered rifles with barrels longer than 14.5” should function properly when firing 223 Rem ammunition.

https://www.hornadyle.com/resources/le-faq/what-is-the-difference-between-556-nato-and-223-rem-ammunition

>>14918121

https://www.armystudyguide.com/content/army_board_study_guide_topics/m16a2/ammunition-types-and-char.shtml

Ammunition Types and Characteristics.

Cartridge, 5.56-mm, Ball, M193. The M193 cartridge is a center-fire cartridge with a 55-grain, gilded metal-jacketed, lead alloy core bullet. The M193 round is the standard cartridge for field use with the M16A1 rifle and has no identifying marks.

Cartridge, 5.56-mm, Tracer, M196. (Used in the M16A1 rifle) The M196 cartridge has a red or orange painted tip. Its main uses are for observation of fire, incendiary effect, and signaling. Soldiers should avoid long-term use of 100 percent tracer rounds, which could cause deposits of incendiary material, or chemical compounds that could damage the barrel. Therefore, when tracer rounds are fired, they are mixed with ball ammunition in a ratio of no greater than one-to-one with a preferred ratio of three or four ball rounds to one tracer round.

Cartridge, 5.56-mm, Dummy, M199. (Used in all rifles.) The M199 dummy cartridge is used during dry firing and other training. This cartridge can be identified by the six grooves along the sides of the case beginning about 1/2 inch from its tip. It contains no propellant or primer. The primer well is open to prevent damage to the firing pin.

Cartridge, 5.56-mm, Blank, M200. (Used in all rifles.) The M200 blank cartridge has no projectile. The case mouth is closed with a seven-petal rosette crimp and shows a violet tip.

Cartridge, 5.56-mm, Ball, M855. (Used in the M16A2/3/4 and M4-series weapons.) The M855 cartridge has a 62-grain, gilded metal-jacketed, lead alloy core bullet with a steel penetrator. The primer and case are waterproof. This round is also linked and used in the M249. It has a green tip. This ammunition should not be used in the M16A1 except under emergency conditions, and only at targets less than 90 meters in distance. (The twist of the M16A1 rifling is not sufficient to stabilize the heavier projectile of the round).

Cartridge, 5.56-mm, Tracer, M856. (Used in the M16A2/3/4 and M4-series weapons.) The M856 tracer cartridge has characteristics similar to the M196 tracer with a slightly longer tracer burnout distance. This cartridge has a 63.7-grain bullet. The M856 does not have a steel penetrator. It has a red tip (orange when linked 4 to 1 for the M249). This ammunition should not be used in the M16A1 except under emergency conditions, and only at targets less than 90 meters in distance. (The twist of the M16A1 rifling is not sufficient to stabilize the projectile of the heavier ammunition).

Cartridge, 5.56-mm Short-Range Training Ammunition (SRTA), M862. (Used in all rifles.) The M862 SRTA is designed exclusively for training. It can be used in lieu of service ammunition on indoor ranges and by units that have a limited range fan that does not allow the firing of service ammunition. SRTA ammunition must be used with the M2 training bolt.

Although SRTA closely replicates the trajectory and characteristics of service ammunition out to 25 meters, it should not be used to set battle sight zero of weapons to fire service ammunition. The settings that are placed on the sights for SRTA could be different for service ammunition.

If adequate range facilities are not available for sustainment training, SRTA can be used for any firing exercise of 25 meters or less. This includes the 25-meter scaled silhouette, 25-meter alternate qualification course, and quick-fire training. SRTA can also be used for Urban Operations training.

>>14918148

https://www.wideners.com/blog/m855-vs-m193/#:~:text=The%2062%2Dgrain%20M855%20is,more%20extensive%20and%20lethal%20wounds.

M855 VS M193

POSTED ONFEBRUARY 25, 2021

AMMO/AMMO GUIDES

You probably already own a host of firearms chambered in 5.56x45mm NATO. This popular cartridge was first developed in the 1970s by FN Herstal for the M-16 battle rifle used during the Vietnam War. The AR-15 rifle, which is the civilian version of the M-16, also takes advantage of this popular chambering. Today, the civilian AR-15 rifle continues to have the highest production rate of any firearm using this caliber.

One of the debates that often crops up among shooters is which of the two most popular cartridges, the M855 VS M193 is better. While both of these 5.56x45mm NATO cartridges are affordable, available, and reliable, neither performs above average. They are widely considered “general-purpose” loads and their performance is usually enough to keep the average shooter satisfied.

What Is M855 Green-Tip Ammo?

The green tipped 62gr M855 bullet was designed to perform in rifle barrels with faster twist rates.

Easily identifiable by its green-colored nose, the M855 cartridge is designed to improve long-range performance and penetration. The 62-grain full metal jacket boat tail projectile is relatively long for its weight and requires a faster twist rate for proper stabilization toward the target. (Barrels with a 1:7 or 1:8 twist work well with M855). Primarily because of its ability to penetrate, M855 has served as the standard ball ammunition of NATO countries, including the United States, since 1982.

Even though M855 ammo is not armor-piercing, it does penetrate thin-gauge metals, thick clothing, and brush cover very effectively. The green-tipped M855 bullet has a copper jacketed 80% lead core with a 7gr steel tip. The ammo penetrates so well that it devastates steel targets and protective backdrops, resulting in it being banned from many firing ranges.

However, the ammo will not typically break through brick or any of today’s body armor, and ground troops in Iraq were reportedly frustrated that M855 ammo could not penetrate auto glass, even at short distances.

M855 Ammo For Self-Defense?

Those features that allow the M855 ammo to power through many barriers also make it more likely to pass through a soft target without inflicting significant tissue damage. The tougher M855 tends not to fragment and is, in fact, considered a more “humane” combat cartridge. Fragmentation provides more energy and damage within the target than if the bullet had passed straight through, a potential drawback for those purchasing ammo for self-protection or hunting.

Vietnam & Beyond: M193 Ammo

Developed in the 1960s, the M193 is a 55-grain copper-jacketed round (full metal jacket) that was the primary ammo for the M-16 battle rifle. It saw plenty of action in Vietnam and beyond until the M855 replaced it in 1982. While it was reasonably accurate when used with the M-16’s 1:12 twist-rate barrel, the projectile, as one soldier explained it, “sheds velocity faster than a Golden Retriever sheds hair on the living room carpet,” making long-range accuracy a problem.

Another issue is the lightweight grain. It didn’t allow the projectile to cause much damage if it first penetrated light cover, such as thick clothing or the jungle vegetation of Southeast Asia. However, if the M193 round found its target unimpeded, it would often fragment, causing considerable damage inside soft tissue. Unfortunately, fragmentation has never been consistent with M193 loads, and without it, the projectile typically produces minimal wounds.

Comparing M855 VS M193

>>14917998

>>>14916348 Ontario won't mandate COVID-19 vaccines for hospital workers - toronto news

Repeating HUMA=>Four Year Marker

>>14918208

>Both elections get audited and not only is fraud found, but both Rs win w/ the actual results.

dimwits in Fairfax dropped the requirement for last four of ss number on the ballot. Judge said fuckhoff nostanding, dims can do whatever the fuck they want.