7.62 Nato Copper vs Steel Jacket

masintra

masintra

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I picked up 200 rounds for my m14 but upon opening the green battle packs noticed they were steel jacketed.

Is this going to hurt a standard chrome-lined norc14 barrel compared to using copper plated rounds. I know copper is a softer material but will it matter a lot or is it something that takes 10000 rounds to make a real difference?

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I'm not positive but IIRC they are cupro-nickel steel jacketed with lead cores and were designed to be more environmentally friendly in the mid '90s.
The Germans used these in the G3 and probably still do in thier MG3s.
Shouldn't be a problem for your M-14.
 
Thanks for the reply.

"A lot of chrome-lined shotguns[firearms] are probably of Russian make. They're used to chrome lining bores. The Soviets started doing this for two reasons. First, it is easier to clean and also doesn't rust if the soldier had to wait a day or so to clean his weapon. Further, a lot of Soviet and Warsaw Pact ammo was corrosive. Second, the chrome extended barrel life because it's harder than steel. Most Soviet and Warsaw Pact ammo was/is bi-metal jacketed. That is, the bullet is not all-copper jacketed. It is steel with a copper wash. The chrome lined bore negated any excessive wear from the bi-metal jackets, though the wear factor is actually very overblown."

I found the above post that makes sense. I knew about the cleaning aspect of a chrome-lined barrel but the extra hardness makes sense with the Europeans using a harder metal to jacket bullets.
 
Yes, the M305 bores are flash chromed.
Many bullets are steel jacketed, regardless of what colour they are. Invariably, the steel jacket will be plated or coated. Don't worry about it.
 
Shine a flashlight into the chamber.


http://answers.yahoo.com/question/index?qid=20080323154203AAm3tzi

Taken from the link above.

Good
"Chrome lined barrels have greater longevity because they are better able to resist conditions which erode the bore (combustion heat during shooting, moisture/rust, powder or copper fouling and general wear & tear from handling or cleaning)."

Good
"Chrome lined barrels don't lose accuracy any more than non-chrome lined barrels do. With proper maintenance & cleaning, they'll probably retain accuracy longer."

Bad?
"There is also a slight drop in accuracy (compared to an identical quality non-lined barrel), about 0.5 MOA worth from what I've seen - something 99% of shooters won't notice"


How many people would take that drop in immediate accuracy just to be able to shoot 20,000 rounds through one barrel. That amount of ammo would cost almost $14,000 without reloading.

Get two or three m14s instead of just one. :)
 
Swiss use cupro nickle jackets for the 7.5x55 for 100 years give or take.....and they have some of the most accurate issued rifles on the planet.
 
The steel used in bullet jackets is softer than barrel steel too. Try a magnet on the bullet. A silver coloured bullet isn't always steel.
The biggest problem is that some ranges don't allow them due to a perceived fire starting danger. Not likely a problem this time of year, but that doesn't mean the range will allow 'em. Some ranges don't allow FMJ's at all for the same reason. Mind you, there are a lot of bozos who only shoot to empty the mag as fast as possible, sending the bullets everywhere. These twits damage range equipment and that gets FMJ's banned faster than anything else.
 
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