Ehh I still dispute that article purely based on the metallurgy of it.
Steel cases are just as soft at brass for extractors. Bimetallic jacket projectiles only have copper contacting rifling.
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Ehh I still dispute that article purely based on the metallurgy of it.
Steel cases are just as soft at brass for extractors. Bimetallic jacket projectiles only have copper contacting rifling.
I think most people bash steel cased ammo on the base that they gunk up the chamber, which haven't proven true.
It may make the case stick tho upon extraction, and is more likely to separate/break than brass that would deform under similar conditions.
But again, barnaul, mfs and norc copper washed stuff have been nothing but good in my firearms.
Glad you were lucky with your tula Shawn, I definitely was not and after the incidents, found quite a few stories resembling mine and never again.
Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has.
- Descartes
I've heard a lot of bad about Tula 308.
All I've shot is .223 55gr and 62gr
Is the 5.56 surplus lacquered steel?
Ive only had issues with lacquered steel x39. might have been Czech surplus? Grey coloured case, comes on strippers and in a robin egg blue box. I’m sure everyone knows the stuff. However copper washed Chinese surplus hasn’t been an issue. Heat and lacquer might be the problem.
Mine didn't like Tula, but only with certain mags. It was diving into the feed ramp.
Worked fine otherwise. I'm still chewing through stuff I bought years ago. I wouldn't buy it again
Schrödinger's Gat - The logical paradox which posits that a firearm, stored safe in the home, is at the same time On The Streets
Haven't seen any surplus with lacquered cases, just Barnaul, which has never been an issue. Although made in the same place the MFS I have bought always seems to be Zinc.Originally Posted by Dime
https://www.barnaul.co.nz/articles/why-steel
""BARNAUL have developed external coatings for the steel cases which actively reduce contact wear in the chamber – the Hunter Grade, for example is marketed with Zinc, Lacquer or a new Polymer coating on the steel casing – are you seriously going to say that these coatings are harder wearing than steel? These exterior coatings are carefully administered through guarded procedures and include applied metals as well as scientifically formulated specialist lacquer coatings. The especially applied external coating of the steel cases, together with the reduced pressures and lower operating temperatures, greatly reduce barrel and chamber wear and assist in accuracy.
The projectile too has had some major attention. The jacket is a specially developed low-carbon steel, which is coated with copper and passed through a double heat treatment during the manufacturing process. This allows BARNAUL to temper and finish the product so that it looks and behaves like copper.""
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