Brass vs Steel. . . Yet again. . .

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Brass vs Steel. . . Yet again. . .

Postby Thom » Fri Mar 06, 2015 4:02 pm

TulAmmo has posted a pdf from the Anderson Mfg test. Two identical rifles, one fired with Tula steel cased ammo and the other with American Eagle brass.

Each gun had a chamber cast made before starting, then again at 2500 rounds and finally at 5000 rounds. Wear was pretty much identical for both guns with the exception of the gun shooting brass ammo exhibited problems with the gas rings which may have been anomalous. This test was only 5000 rounds, so I am sure the arguments will continue, but it seems to me that they made a sincere effort to do it right.

>>PDF Here<<
Thom. . .

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Re: Brass vs Steel. . . Yet again. . .

Postby Globemaster » Fri Mar 06, 2015 7:18 pm

very well done ... :thumbs up:
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Re: Brass vs Steel. . . Yet again. . .

Postby Thom » Fri Mar 06, 2015 7:27 pm

It seemed like a very sincere effort to test as fairly as possible. Neither rifle was cleaned during the process, only disassembled and inspected at 2500 rounds and 5000 rounds.
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Re: Brass vs Steel. . . Yet again. . .

Postby Globemaster » Fri Mar 06, 2015 8:08 pm

yup I agree Thom, I like seeing and reading tests like this, as it shines a positive light on the sport; when most of the stories of late, are all negative ... I enjoyed it.
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Re: Brass vs Steel. . . Yet again. . .

Postby Rattler » Mon Mar 09, 2015 8:27 am

I have no doubt about the authenticity of this test. But in my humble opinion, they are not testing all the right perimeters, some of which are far more critical in my mind.

Extractor and ejector wear are also issues, but let's face it, they are parts that sell for under $20.00, so who really cares, right? My main concern is stress and pressure. This test does not address either. Steel cases do not allow for case "flow", like it does with brass. for this reason pressures really spike at the chamber- right where you do not want a pressure curve so high. The barrels are not going to be a problem for the most part, but bolts and barrel extensions take a ton more stress than they are supposed to.

Again, in the long run, not a big deal even if you have to replace a bolt or two along the way at $45- $55.00 a piece, but a failed barrel extension and/or catastrophic failure of a bolt can mean more than just a cash outlet if you know what I mean.

I'm not anti-steel cased ammo. I'm not even anti-steel case 223 being used in an AR15. I'm just not as optimistic about it's use being 'of no measurable difference' over a solid diet of brass. I do tens to be more precautionary and i understand this. Some see this as a failure or shortcoming. I just see it as it is. No biggy.

In conclusion, I think the fact that we see more tests being done with steel vs. brass is just an indicator that people still question its use. Take that for what it is....
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