Newbie question

[lechowicz]

Hello all,
I'm not sure this is the proper forum for this question but--- I recently acquired a M1A. Bought a case (200Rnds) of "new old" WWB 7.62x51 Q3130. Examining the purchase I found all boxes (big packing and 20 round ones were authentic Win. The rounds headstamp is NATO cross, 12, WWC @ 12,4 and 8 respecvtively.Cases are brass (non magnetic) with annealing,circle crimped primers ,with what appears to be old purple sealant.Projectile is magnetic, FMJ, 147 grain. Cases appear in decent shape i.e. no extractor marks etc. Thus far everything seemed OK!
Upon examination of the case neck/cannelure interface I noticed all of the rounds have a neck crimp that was apparently made with a collet type crimper. I am completely unfamiliar with WWB ammo. So I am wondering if I was sold reloads not new WWC cartridges. Can anyone here tell me if new (i.e. with a Nato,WWC and 12 headstamp) WWB 7.62x51 should exhibit collet type neck crimp marks or were these reloads masquerading as new ?
Thanks

 

[wankerjake]

I believe that is normal. Pics?

 

[bikerdoc]

Wow great question. Wish I had an answer.
Welcome to THR and thanks for an intelligent first post.

 

[H&R Glock]

Where did you buy this equipment? Got pictures?

 

[Skeptic13]

WWB just stands for Winchester White Box probably Winchester contract ammo. I am not familiar with the WWC head stamp. Are you sure it is not WCC. That would be Western Cartridge Company.

 

[peels]

Welcome to THR!

It is highly unlikely to be reloads, especially if you noted an intact primer crimp with sealant. Typical reloading outfit would not apply primer crimps nor sealant.

As for the crimp around the case mouth, what you are noticing is also typical factory crimp. Its probably quite noticeable sectios of crimps applied.

All tends to add up to the ammo being factory.

 

[lechowicz]

WWB just stands for Winchester White Box probably Winchester contract ammo. I am not familiar with the WWC head stamp. Are you sure it is not WCC. That would be Western Cartridge Company.

thanks for the reply.

Where did you buy this equipment? Got pictures?

Sorry for the typo! I have been keyboardingly challenged all my life. It is indeed WCC

 

[lechowicz]

Where did you buy this equipment? Got pictures?

Thanks. online, No pictures. I can take pictures but am unable to post them.

 

[Johnnyd]

I have 30-06 surplus with 4 section and 8 section crimp marks.

ETA
And I've shot a few k of it over the years without issue.

 

[mdi]

"Collet type crimp"? Does it look like a ring impressed on the bullet/case mouth? If so, that's normal. Military ammo may have more crimp but not really sure. I have fired a bunch of surplus 30-06 ammo in my Garand from "pre-NATO", Korea War era, some issue ammo (Winchester?) and a lot of HXP surplus with staked crimp bullets and primers. All worked well. Your ammo sounds like typical issue, new manufacture ammo.

 

[lechowicz]

I believe that is normal. Pics?

Thanks. I can get Pictures but am unable to post them.

I believe that is normal. Pics?

I have 30-06 surplus with 4 section and 8 section crimp marks.

ETA
And I've shot a few k of it over the years without issue.

Thanks. These have 6 section crimp marks.

 

[lechowicz]

"Collet type crimp"? Does it look like a ring impressed on the bullet/case mouth? If so, that's normal. Military ammo may have more crimp but not really sure. I have fired a bunch of surplus 30-06 ammo in my Garand from "pre-NATO", Korea War era, some issue ammo (Winchester?) and a lot of HXP surplus with staked crimp bullets and primers. All worked well. Your ammo sounds like typical issue, new manufacture ammo.

Thanks. These marks are on the case mouth. They are a ring of small rectangles (the fingers of a collet) each rectangle is seperated from adjacent ones by a small unmarked space. If you are familiar with MEC 9000 series progressive shotgun presses I expect the die that made the marks on my cases would generally work as the resizing station collet does on the MEC machines. It never occured for me to associate them with the staking process. Guess I was thinking more like that process as it is applied to castle nuts or chi com primers etc.. However, it would seem that the intent is to have a "staking" effect on the projectile and case.

 

[mstreddy]

WCC is Winchester Cartridge Corporation, IIRC. Normally seen in military contract ammo. If may be seen in Winchester white box as overruns, etc... Nothing wrong with that ammo at all. And, welcome to THR.

 

[Bcwitt]

That would be the correct crimp.

 

[lechowicz]

Thanks to all for the welcome and the advice!