re: Shot my first AR15 this morning

TTT give me a call I have some coming in this week Stag upper with essential arms lower, RRA lpk, 6 position stock $720.00

didnt read the whole thread so it may have been mentioned already. I believe the bushmaster that is at Cabelas is the polymer version. I think it's called the carbon lite.

Good link, glad you found it so I wouldn't have to. Very well written and informative. One of the best I read when I got started

Rock river arms 2 stage

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Rock river arms 2 stage

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Badass!

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Tots

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replied

This may be a dumb question but...

Would it be wise to take baby steps before moving to an AR? By this I mean, should I consider looking into a .22lr AR style gun before moving to the .223?


Sorry I'm asking so many questions, I'm new to this type of gun and want to be both practically and economically responsible prior to a purchase.

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Love the MOE. So comfortable. Have not shot the dissipator before. A range trip may be in order

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I keep it open sights obviously since that's kind of the point of the dissipator, but the way the thing is configured, I'd swear it's not jumping as much as the other AR's I've shot. I can get up on it further out on the grip and control the jump and double tap like a mofo with this thing. I keep it on a VTAC sling in front of me when I'm on the four wheeler just begging to run across a sounder of hogs.

What brand of scope is that on there? I'm looking to put a nice scope on mine to do some longer range shooting with it. I would love a night force, but god damn those things are expensive. Also, what trigger would you recommend?

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Just get one ttt. Between the ar and your biceps the panties should stay dripping wet

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TTT hasn't been keeping up in the gym the past 2 months

correct....due to the leade



The Cartridges

The .223 Remington and 5.56×45 NATO cartridges are very similar, and externally appear the same. But there are some differences that lie beneath the surface.

The 5.56 case has thicker walls to handle higher pressures, meaning the interior volume of the case is smaller than that of a .223. This will alter the loading data used when reloading 5.56 brass to .223 specs.

Some 5.56 loads have a slightly longer overall length than commercial .223 loads.

The Chambers

The significant difference between the .223 Rem and 5.56 NATO lies in the rifles, rather than the cartridges themselves. Both the .223 and 5.56 rounds will chamber in rifles designed for either cartridge, but the critical component, leade, will be different in each rifle.

The leade is the area of the barrel in front of the chamber prior to where the rifling begins. This is where the loaded bullet is located when a cartridge is chambered. The leade is frequently called the “throat.”
On a .223 Remington spec rifle, the leade will be 0.085”. This is the standard described by the Sporting Arms and Ammunition Manufacturers’ Institute, Inc. (SAAMI). The leade in a 5.56 NATO spec rifle is 0.162”, or almost double the leade of the .223 rifle.

A shorter leade in a SAAMI spec rifle creates a situation where the bullet in a 5.56 NATO round, when chambered, can contact the rifling prior to being fired. By having contact with the rifling prematurely (at the moment of firing), chamber pressure can be dramatically increased, creating the danger of a ruptured case or other cartridge/gun failure.

The reverse situation, a .223 Rem round in a 5.56 NATO gun, isn’t dangerous. The leade is longer, so a slight loss in velocity and accuracy may be experienced, but there is not a danger of increased pressures and subsequent catastrophic failure.

How serious is the danger of firing 5.56 ammo in .223 guns? Dangerous enough that the SAAMI lists 5.56 military ammo as being not for use in .223 firearms in the technical data sheet titled “Unsafe Firearm-Ammunition Combinations.”

ATK, the parent company of ammunition manufacturers Federal Cartridge Company and Speer, published a bulletin entitled “The Difference Between 223 Rem and 5.56 Military Cartridges.” In this bulletin, ATK stated using 5.56 ammo in a .223 rifle could result in “…primer pocket gas leaks, blown cartridge case heads, and gun functioning issues.”

However, the danger may be lower than SAAMI or ATK suggest. In Technical Note #74 from ArmaLite, the company states “millions of rounds of NATO ammunition have been fired safely in Eagle Arms and ArmaLite’s® SAAMI chambers over the past 22 years,” and they have not had any catastrophic failures.