LCW 7.62x39 Nail Test

mobusten

CGN Regular
Location
Central BC
So I recently bought a case of 1000 LCW 7.62x39 FMJ from you guys, and I did some looking up and apprently some people a couple of years ago found that their "non-corrosive" LCW 5.45x39 was in fact corrosive. So I decided to look into this myself.

I took 3 different manufacturers of the same calibre (7.62x39 obviously). Sellier & Bellot brass cased soft point stamped with a 12 on the head, LCW not stamped with any year, and the old chinese "non-corrosive" ammo stamped 31 and 71. The chinese is widely regarded as corrosive despite being advertised as "non-corrosive" by one Vancouver company who I will not name. I will say it's not Canada Ammo.

I live in Calgary so the weather here is quite dry, so each day I took a shower, I would bring the block of wood the nails were hammered into, into the bathroom and left it on the counter just so that they would get SOME moisture out of the air. I've never posted pictures before so hopefully this works...

Here are the results:

LCW Nail before primer detonation
1zcicdl.jpg


All the nails looked basically the same before detonation so I will only show the one "before" pic.

Here are the nails just after primer detonation.

S&B Nail.
2zqqx3d.jpg


Chinese Nail.
2ypnash.jpg


LCW Nail.
1z3nn1f.jpg



Now these are the same nails 48 hours later.

The S&B nail is basically unchanged.
33vdagn.jpg


The Chinese nail looks like it's developing some rust as expected.
2n6ey43.jpg


And here's the LCW nail.
hrec0m.jpg



Now... I'm no rust expert, so correct me if I'm wrong.. But to me that looks an awful lot more like the fuzzy, rust coloured Chinese surplus nail than the still metallic S&B nail.
I'd like to hear everyones thoughts on this aside from, "corrosive ammo is fine bro".
 
I would be wrong but the Chinese surplus seems to be doing much better than the new LCW stuff. Could this be..... another.........
Thanks for doing this test man. How did you remove the bullet safely btw ?!?
 
Alright well I'll post more pictures in a few days, I'd say that's a fairly dramatic change though from the first day. The S&B nail hasn't changed at all under identical conditions.
 
i have a muzzlebrake that proves most of the Chinese is infact corrosive. soooo rusty......
This is interesting as i just cracked open my case of lcw
 
Tagged for interest. Glad you went ahead and did this as it saves me and others the trouble, thank you.
People are gonna eventually ask for you to pull a couple more and test them as a double check.

Lets see bright nail tests from other peoples lcw cases they have received if possible? More results would be ideal so we can all be aware, I intended to purchase some eventually as well.

Thanks again.
 
Thanks for doing the test if it does turn out corrosive a lot of people are gonna save money because of you
 
Money part isn't a major issue as CanAm will make it right in the worst case scenario like Wolverine did after their discovery (LA on Burrard sucks).

More critical are the lazy bass like me that haven't clean their XCRs after firing this non corrosive LCW ammo.

Used MFS for years with minimal cleaning, this LCW better not rust my XCR, last several weeks has been tropical rain forest here in Raincouver/Wet Coast.
 
I tested it before, and the ammo has been certified as NC. I will test again, but given that they sell hundreds of millions of rds in the US every year, I am fairly certain.
 
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