Winchester "White Box" Varmint problem!

[KF9VH]

I shot one round of this junk in my AR the other day. First shot shell stuck in the chamber. Had to take it to a gun smith to remove it. The primer was blown out.

Shot some reloads after the gun smith and no problems.

Perhaps I had a bad lot but that is it for me. No more " white box" for me.

[oso45-70]

Kf9VH,
Just a thought sir, It sounds like your bolt didn't fully engage and still went ahead ond fired. Its like it slam fired, Not sure about that but its a thought.
I have used the white box ammo some and never had a problem with it,
Which don't mean a darn thing. Do you have a bolt action rifle you could use to test it out ? I know how easy it is to get down on some thing, Been
there and done that. Good luck to ya..........Joe..........

[Badnews Bob]

That white box junk shoots great in my CZ 527 bolt rifle. I wonder if your problem could be that the winchester stuff is in .223 cal not 5.56 Nato there are some small diffrences in the two and an ar is chambered for 5.56 not .223, I don't know this I'm just thinking out loud. :roll:

[5Redman8]

Bob has a point.  But I thought most of the problems were in reverse....5.56 in 223 chamber=bad news???  I thought that....meaning I am not sure at all.  

Bob might be RIGHT on the money!!!

Everything I have gotten wind of about the White box Win. has bee GREAT.  Means nothing to me, as I reload.

Kyle

[Elwood]

I don't think that I have ever seen a AR stamped 5.56. All that I have handled or owned were marked 223 Remington. I do know the difference between the two designations. Even if the rifle were chambered for the 5.56 it is doubtful that firing a slightly lower pressure round would cause a stuck round.
Elwood

[shoot'n hogs]

My bushy is stamped 5.56.  The manual says 223 in 5.56, o.k.  But, 5.56 in a 223 rifle is bad news.  (to much pressure)

[LouD]

For what it's worth, my Bushmaster Varmint Special loves the White Box Varmint loads.  Probably have shot around 10 boxes so far (400 rounds) without a hitch.  Typical sub MOA 5 shot groups, with 3 able to be covered by a dime.  The best I have tried, & good enough for me

[myronman3]

5.56 is the name of the military loading (charge, bullet type and weight, you get the idea).  a 223 has many different ways of being loaded.  a 5.56 has one standard load.   for all intents and purposes they are the same thing.  the only real difference is the  military round uses a very heavy bullet for caliber and the rifling twist is faster to stabilize the bullet.  this can put too fast a spin on 223 rem. rounds; causing preformance failures or even possible high pressures.  
   my bushmaster liked the winchester ammo i bought (fmj) to burn off for hte brass.  i have only tried the one kind and am quite eager to try some of my favorite bullets through it.

[Badnews Bob]

Sorry myron man but 5.56 is metric for .223 and the chambers are cut diffrent. They are not the same but there isn't much of a diffrence. I also believe that the only pressure problem is when you try and load a hot .223 load in a mil case, They have a thicker casing hence a smaller case cap. so if you load it hot the chamber pressure will go way up, pressure shouldn't be aproblem with factory or mil loads just with handloads.

[myronman3]

i know it is metric, because of  n.a.t.o..    i will concur that the brass on military cases is of different thickness.   as far as the chambers being different, every one of my reloading manuals state that the 223 is the same as the 5.56 nato; except for the 62 grain bullet.  
   until someone can prove that there is an actual physical difference,  i say nay.    if there were, they would have to be different cartridges.   maybe the throats are cut a bit deeper on the 5.56 to allow the longer bullets, but that is a rifle difference (same as twist rate), not a cartridge difference.    if ANYONE can prove me wrong, i welcome it (then i can say i have learned something); but i doubt it can be done.