Very interesting read, thank you for posting that. Looks like he did get a few popped primers from firing 5.56 in a .223 chamber (less than ideal). Given that an awful lot of people don't know the difference between 5.56 & .223, you can guarantee that thousands of people are shooting 5.56 ammo in .223 chambers every day without realizing it, and without blowing up their guns...mdoan300 wrote:This may change your perception about that: http://www.luckygunner.com/labs/5-56-vs-223/" onclick="window.open(this.href);return false;DentonTactical wrote:5.56 and .223 are slightly different - a rifle chambered for 5.56mm can also fire .223, but a rifle marked .223 should not be used with 5.56 (5.56 is a slightly higher pressure round). There is a more detailed explanation here:
http://en.wikipedia.org/wiki/5.56%C3%97 ... _Remington
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Return to “Want to learn more about AR rifles.”
- Tue Sep 18, 2012 1:52 pm
- Forum: Rifles & Shotguns
- Topic: Want to learn more about AR rifles.
- Replies: 10
- Views: 3374
Re: Want to learn more about AR rifles.
- Tue Sep 18, 2012 1:17 pm
- Forum: Rifles & Shotguns
- Topic: Want to learn more about AR rifles.
- Replies: 10
- Views: 3374
Re: Want to learn more about AR rifles.
Be warned, it is virtually impossible to own just one AR - they tend to multiply when put in gun safes.MikeStone wrote:Man I love this site...but it's costing me a ton of money...now I want an AR!
- Tue Sep 18, 2012 8:17 am
- Forum: Rifles & Shotguns
- Topic: Want to learn more about AR rifles.
- Replies: 10
- Views: 3374
Re: Want to learn more about AR rifles.
5.56 and .223 are slightly different - a rifle chambered for 5.56mm can also fire .223, but a rifle marked .223 should not be used with 5.56 (5.56 is a slightly higher pressure round). There is a more detailed explanation here:
http://en.wikipedia.org/wiki/5.56%C3%97 ... _Remington
5.56mm is the standard AR-15 round, although versions in other calibers can be found. 5.56 is used by NATO and many police forces in the US, and is the standard round found in the military M16 and M4 rifles.
As for upper & lower - it is a 2-part receiver design. The lower is legally the firearm, and contains the trigger, buttstock etc. The upper has the barrel attached and bolt.
One of your main decisions is carbine (typically 16" barrel) vs rifle (commonly 20" barrel). For personal protection, shorter and more maneuverable is usually more practical. The longer barrel gives more velocity, so is often better for long range shooting.
The most important parts of the rifle/carbine are the barrel, the bolt, and the trigger. All can be upgraded later (trigger is the most common upgrade people seem to do, barrel is the hardest to do). Stick with a quality manufacturer and you should be okay.
http://en.wikipedia.org/wiki/5.56%C3%97 ... _Remington
5.56mm is the standard AR-15 round, although versions in other calibers can be found. 5.56 is used by NATO and many police forces in the US, and is the standard round found in the military M16 and M4 rifles.
As for upper & lower - it is a 2-part receiver design. The lower is legally the firearm, and contains the trigger, buttstock etc. The upper has the barrel attached and bolt.
One of your main decisions is carbine (typically 16" barrel) vs rifle (commonly 20" barrel). For personal protection, shorter and more maneuverable is usually more practical. The longer barrel gives more velocity, so is often better for long range shooting.
The most important parts of the rifle/carbine are the barrel, the bolt, and the trigger. All can be upgraded later (trigger is the most common upgrade people seem to do, barrel is the hardest to do). Stick with a quality manufacturer and you should be okay.