Federal (Lake City) XM-193 ammo

[Mike1911]

I just read tht the Federal "Lake City" XM-193 .223 is NOT safe to use in sporter 223 rifles. Notes:

"While, .223 and 5.56 x 45 ammo are interchangeable, the 5.56 may be loaded at higher pressures than .223. SAAMI warns not to use 5.56 ammo in sporter 223 rifles. "

I just bought 10 boxes of the stuff. Should I get rid of it? Sell it on Gunbroker?

Thanks

 

[drgrant]

IMO there is nothing wrong with XM-193 in a typical AR-15
rifle. Most of them will handle 556 NATO ammo just fine.

Edit: Some AR's may have an oddball .223 only chambering (doubtful)
and there might be some "hunting rifles" which won't deal with with it,
but I'd wager that's more of an exception rather than a rule. When in
doubt check with the manufacturer.

-Mike

 

[TY43215]

I just read tht the Federal "Lake City" XM-193 .223 is NOT safe to use in sporter 223 rifles. Notes:

"While, .223 and 5.56 x 45 ammo are interchangeable, the 5.56 may be loaded at higher pressures than .223. SAAMI warns not to use 5.56 ammo in sporter 223 rifles. "

I just bought 10 boxes of the stuff. Should I get rid of it? Sell it on Gunbroker?

Thanks

Sell it now. Let me know how much you want as I am down to my last case.

 

[boston_007]

Listen to RGS and sell immediately!!! Just make sure you sell some to me too...........

 

[Mike1911]

IMO there is nothing wrong with XM-193 in a typical AR-15
rifle. Most of them will handle 556 NATO ammo just fine.

Edit: Some AR's may have an oddball .223 only chambering (doubtful)
and there might be some "hunting rifles" which won't deal with with it,
but I'd wager that's more of an exception rather than a rule. When in
doubt check with the manufacturer.

-Mike

I have a Bushmaster AR15, I'll have to give them a call.

 

[MFP4073]

If I remember correctly your Bushmaster should have a 5.56 Nato stamping on the barrel. Take a look.

 

[bpm990d]

If I remember correctly (mine are not in front of me), your Bushmaster should have a 5.56 Nato stamping on the barrel. Take a look.

Yeah, I've never heard of a Bushmaster chambered in .223.


B

 

[IPSC_DRL]

5.56 OK in Bushy.

I can save you the phone call. Look at what is stamped on the side of the receiver. (I know MINE says cal .223/5.56 NATO)

 

[Tweed]

I can save you the phone call. Look at what is stamped on the side of the receiver. (I know MINE says cal .223/5.56 NATO)

he should be looking at the barrel/upper and not the lower receiver for the information.

 

[cdkayak]

Look for stamps similar to the top two on this link on your barrel.

http://www.biggerhammer.net/ar15/barrelsbolts/

If I have a chance tonight I'll take a shot of a Bushmaster barrel.

Also, I've fired M193 out of several Bushmaster AR15s without any problems.

 

[IPSC_DRL]

he should be looking at the barrel/upper and not the lower receiver for the information.

You know, that makes a lot more sense, yet the marks are there.

 

[jrbtzx12r]

As long as the barrel is stamped 5.56 you should be OK. Check this site out http://www.ammo-oracle.com/body.htm.

Jr

 

[Mike1911]

I can save you the phone call. Look at what is stamped on the side of the receiver. (I know MINE says cal .223/5.56 NATO)

Yup, that's what mine is stamped. Thanks to all who answered.

 

[vellnueve]

Most if not all ARs are built to military specs.

 

[drgrant]

Most if not all ARs are built to military specs.

That's not completely true, least not as stated. While 99.9% of
them might have a 5.56 NATO chambering, "military spec" is a lot
more than just the chambering. There are rifles on the market
that would not meet "military specs" as defined by the DOD, etc,
due to construction methods, etc. Note that "spec" doesn't
always have to do with "quality" but nitpicking by the DOD about
things like the height relationship of the FSB to the rear sight, and
a whole slew of other crap. There is some type of spec
document for companies building DOD contract guns, but I forget
what it is called offhand. Basically the deal is if uncle sam
wants, say bushmaster, to make a run of M4's for them, the
guns have to meet the spec in order to be accepted.

Edit: I will admit that some of this is apples to oranges, as FA/Semis
are two different ballgames, but the parts commonality is high.

-Mike

 

[vellnueve]

Let me change that to "chambered to military (5.56) specs"