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Posted: 3/18/2010 9:17:55 PM EDT
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hello guys i was curious so i have 2 questions
1st what is sammi/sami spec ammo? 2nd is laquered caseing realy that bad for an ar? |
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Quoted: so basicly, good .223/5.56 will work just fine? if im understanding it correctl so my next question is how come the laquered stuff has such a bad reputaion in the ar rifles? ( you your opinions) Well, if your gun is chambered for .223, you shouldn't shoot 5.56 in it. But, it is ok to shoot .223 in a gun chambered in 5.56. The pressure of the 5.56 round is much greater than .223. One of the reasons people don't like the steel cased ammo is because it can potentially accelerate wear on your extractor. Then theres the fear of gumming up the chamber with the lacquer, which can happen if you don't properly clean your firearm. A lot of times, it is also loaded weaker than other brands of domestically produced ammo, which can of course, cause feeding problems. |
OK, first of all I have no experience with laquer coated cases, second I have been in the chemical coatings industry(painter ) for close to 15 years and have alot of experience working with laquer. This I know, laquer is very hard(close to impossible) to break down (clean up)with any solvent that is any less hot then laquer thinner, which is a pretty hot solvent. Far hotter than almost any gun cleaning solvent. When you add heat to the mix, laquer is a very sticky substance when wet. When it drys, or in this case cools laquer sets up hard. Much harder then most any paints. Knowing this a least about laquer I would not want it in the action, or chamber of one of my firearms.
I suppose you could clean your chamber with a chamber brush and laquer thinner if it built up there, but laquer thinner will melt the hell out of most plastics, especially in large ammounts or in prolonged exposure. Also laguer thinner is hot enough to really mess up alot of kinds of(common) finishes, like paint, and household finishes mostly I mean.(clearcoats,urethane based finishes) Not bluing, but I don't know what it would do to popular gun finishes such as, parkerizing, gunkote, and all other specialty gun finishes. So handle with care if you use it, and test small, out of sight areas first on anything you are not sure about. Now there are different types of laquers, but in my experience they share these properties I speak of. BD |
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