2aHawaii

General Topics => General Discussion => Topic started by: kekoa on August 20, 2013, 05:23:05 AM

Title: 5.56 and .223 p-mag fitment
Post by: kekoa on August 20, 2013, 05:23:05 AM: Good Morning 2aHawaii Crew,

I was looking into an IWI Tavor in 5.56, more like fantasizing for now; my understanding is that you can shoot .223 in a 5.56 but not a 5.56 in .223 caliber rifles. Can you use the same p-mag for either caliber though or do I need to get mags for each caliber? I will probably shoot .223 mostly but like the idea of being able to shoot hotter if I would like too.

I am new to firearms but have been bitten hard by the enjoyment of shooting so sorry if this is a remedial question.

Many thanks!
Title: Re: 5.56 and .223 p-mag fitment
Post by: Haoleb on August 20, 2013, 05:54:37 AM: .223 REM and 5.56 NATO use the same magazines. The biggest difference between the two is that 5.56 is loaded to higher pressure's. Physically they appear almost identical.
Title: Re: 5.56 and .223 p-mag fitment
Post by: Kingkeoni on August 20, 2013, 07:26:25 AM: P-mags can take both the 5.56 and .223 ammo. :thumbsup:
Title: Re: 5.56 and .223 p-mag fitment
Post by: GZire on August 20, 2013, 07:48:48 AM: Quote from: Haoleb on August 20, 2013, 05:54:37 AM
.223 REM and 5.56 NATO use the same magazines. The biggest difference between the two is that 5.56 is loaded to higher pressure's. Physically they appear almost identical.

There are some minor dimensional differences on the casing as well including but not limited to wall thickness. I will also add that the 5.56 NATO is allowed to be loaded to higher pressures than a .223 Rem it doesn't neccesarily mean it is.
Title: Re: 5.56 and .223 p-mag fitment
Post by: kekoa on August 20, 2013, 09:20:05 AM: Thanks Fellas, as always I can find a wealth of info here :thumbsup:
Title: Re: 5.56 and .223 p-mag fitment
Post by: 808gmac on August 20, 2013, 10:57:12 AM: basically, a 5.56 chamber can take both 5.56 & .223, but with a .223 chamber (tighter tolerances), shooting 5.56 is not recommended. Both 5.56 and .223 uses the same mags.
Title: Re: 5.56 and .223 p-mag fitment
Post by: kevlar on August 20, 2013, 02:35:52 PM: This may not seem relevant to your question, but you can also use the same Pmags that fit 5.56X45 and .223 for the 300 Blackout caliber. Just in case you ever wanted to shoot a 30 caliber round from an AR platform w/out having to buy .308 or 7.62X51.
Title: Re: 5.56 and .223 p-mag fitment
Post by: Cougar8045 on August 20, 2013, 04:20:45 PM: Quote from: kevlar on August 20, 2013, 02:35:52 PM
This may not seem relevant to your question, but you can also use the same Pmags that fit 5.56X45 and .223 for the 300 Blackout caliber. Just in case you ever wanted to shoot a 30 caliber round from an AR platform w/out having to buy .308 or 7.62X51.
I was just about to point this out. Same goes for 6.8SPC and 6.5 Grendel.
Title: Re: 5.56 and .223 p-mag fitment
Post by: primemover on August 21, 2013, 11:32:00 AM: Did not know that about the 6.8 SPC and 300 Blackout all fitting in the PMags.

Thanks! Makes my quest for my first AR even more justifiable :D
Title: Re: 5.56 and .223 p-mag fitment
Post by: 808gmac on August 21, 2013, 11:34:46 AM: Quote from: primemover on August 21, 2013, 11:32:00 AM
Did not know that about the 6.8 SPC and 300 Blackout all fitting in the PMags.

Thanks! Makes my quest for my first AR even more justifiable :D

Once you got the mil-spec lower, you can put on any upper you like. That's one thing good about ARs, they are like legos for guys. No need to go ffl for the upper only
Title: Re: 5.56 and .223 p-mag fitment
Post by: DoubleTap_jayguns808 on August 26, 2013, 11:16:01 AM: it works, just dont be shooting a 5.56 round out of a .223 rifle. then you will have complications... it may fire but it will blow eventually...