Surplus 7.62 inbound

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Well, the Pakastani .303 (that which would fire, of course) which was loaded with cordite was corrosive and erosive. It would eat a barrel relatively quickly, much like the WWII British made stuff. Ammo that is just corrosive would be mild in comparison.

Of course, nothing on the market now, other than WWII vintage British and that crappy .303 is erosive.

Ash
 
What does erosive mean in terms of ammo? Does the bullet itself wear excessively on the barrel or does residue allow follow up shots to wear on the barrel? "Erosive" would tend to imply some mechanical action.
 
The powder erodes the rifling at the chamber forward. The more it is fired, the more erosion down the barrel becomes. Or more plainly, it increases throat erosion at a rate faster than normally caused by the non-rotating bullet suddenly engaging the rifling. It physically attacks the barrel by the mere act of firing. Corrosive ammo doesn't do any more to a barrel at the moment of firing than non-corrosive. Careful cleaning negates any effects of corrosive ammo. Erosive ammo, on the other hand, causes accellerated wear by simply using it. Erosive ammo is caused by the powder, corrosive ammo by the primer. Erosive and corrosive has erosive powder (which really isn't powder at all, but spaghetti-shaped long sticks) and corrosive primer compounds that leave water-attracting salts.

Ash
 
What does erosive mean in terms of ammo? Does the bullet itself wear excessively on the barrel or does residue allow follow up shots to wear on the barrel? "Erosive" would tend to imply some mechanical action.
Click to expand...

It's not the bullets that wear out a barrel, it's the hot gas created by the burned powder that is behind the bullet that kills a barrel. Since this gas is at it's hottest and most concentrated when a bullet initially enters the bore, it is the leade or throat that becomes eroded by the hot gas.

Don
 
Greetings all. I was up at AIM earlier today and picked up a few boxes of the Paki to try out. It's 1980 headstamp and externally looks about like what you would expect for sixteen year old surplus ammo. Hopefully I will get to try it out Monday in my 2A Enfield. I'll post results if I get to shoot.

-jagd
 
270win,
That name brings me back to when I mowed lawns all summer to buy my dad a Weatherby Vanguard VGL in .270 ... Memories... So any way dealers will tell you what you want to hear when you want hear it, did Russian rifles burn out or up in minutes during WWII? I doubt it. With the resources available to the modern and informed shooter we should be able to avoid the corrosiveness of our forefathers. Physically, mentally, emotionally and firearm wise. Get educated, people.

Merry Christmas!
 
All ammo used in WWI and WWII was corrosive. Much of the .303 used by the Brits was also erosive. Every US Garand fired corrosive ammo, just as every Mosin, Enfield, Carcano, Mauser, Mannlicher, Springfield, Lebel, Berthier, MAS, and Arisaka. Corrosive primers last longer than non-corrosive in storage.

However, many of the US-made Mosins used by the US during WWI in training were almost ruined due to lack of cleaning the corrosive ammo made by Remington. And, I have owned Nagant revolvers with corroded bores, as well as K98's out of Yugoslavia with sewer-pipe bores, all of which came from the distributor that way.

Ash
 
Pakistan has a state-of-the-art ammunition factory. Really top notch. I'll see if I can find the video, but once you start producing APFSDS for tanks there's really no point in doing it in a 2nd rate factory, so they've got a really nice one. I'd expect their ammunition to be just fine.
 
All of WWI was corrosive. What in WWII was non-corrosive? .303, 8mm, 7.62x54R, 8mm Steyr, and 6.5 and 7.35 carcano were corrosive.

Ash
 
Have seen unopened old boxes by VPT (finnish for State Ammunition Factory) in caliber 7.62x54r from 1943 and the cardboard box had a big red stamp over it that said "Sinoxid primed".
Sinoxid primers are still used by Sako and Lapua and are non corrosive.
So if the powder was the normal N140 used from 1930's there has been non corrosive 7.62x54r during ww2 atleast in Finland.
 
And, since the Finns fired the captured Soviet ammo, since they chambered their rifles to fire the heavier ball ammo, since their own D166 ammo was designed to mimic the Soviet chambering so that when they captured Soviet ammo, there would be performance change in ammo, regardless of the fact that VPT ammo was indeed non-corrosive, the Finns did indeed fire corrosive ammo, probably more corrosive than non.

Okay, so the M1 Carbine did not fire corrosive ammo. All other arms did. Nit-picking aside, the point is that, save for some M1 Carbines that were fired solely with US ammo, almost all martial arms employed by all powers (all Enfields, Brens, Stens, Webley's, Mausers, Garands, Springfields, Mosins, 1911's MAS-36's, Lebels, Berthiers, Arisakas, Carcanos, etc, fired corrosive ammo and survived just fine).

Ash
 
survived just fine
Click to expand...

How about just "survived". And that was with soldiers who had nothing better to do than sit around and clean weapons (after being ordered to of course).

I don't put my overhauled Garand or high dollar M14 in the same category, and won't be shooting corrosive stuff just because it used to be that way.

My grandad walked to school in the snow both ways too, but I'm not gonna.

But, as to the topic, the Paki stuff at AIM now seems to be OK from reports on warrifles and other places, and with the supply such as it is, I ordered 2000 rounds of the stuff. We'll see how it turns out.
 
Widener's has 20 round sample packs priced the same as a case. They mention something about failures to extract. They originally advised buying a sample first. Now they say that the issue was gun related.

I bought a 20 round pack with some .223. I'll try the 20 and then buy more. From the appearance of the 20 rounds I can't believe that there will be any quality issues.

If I had a huge stockpile of SA, Aussie and Hirtenberger I wouldn't be running for this stuff, but I don't. For the price I think I'll be buying some.
 
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