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AR tips, info., advice

Discussion in 'Black Rifle Forum' started by r3dot, Mar 1, 2012.


  1. r3dot

    r3dot
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    My new AR should be here within the next two weeks. First AR.

    What do I need to know about these guns? Specific oil? Useful cleaning tools? Cheapest ammo? Best HD ammo? Reliable magazines? etc.

    Thanks, guys!
     

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  2. WoodenPlank

    WoodenPlank
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    Who?

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    Mags: H&K, PMAGs, most GI spec mags. Of the three, I'll take PMAGS if Im buying, and H&K if they're free or dirt cheap (only because most places want $40+ each for them).

    Ammo: Anything 5.56 spec, brass cased for practice. Avoid green tip for range ammo, it's more expensive and will tear up steel targets and indoor range backstops. Cheap ammo might run, it might not, but it'll definitely dirty up the gun faster. For HD ammo, Hornady 75Gr TAP LEO (NOT the FPD type), part #8126N, Black Hills 77gr 5.56 are both excellent choices. From a 16" gun, there are plenty of other OTM and soft point loads that will work well, also.

    Cleaning tools: Bore snake, cut up sheets, paper towels, and quality oil/clp. I prefer SLIP 2k, personally. Also, the free toothbrush you get from your local dentist for paying them a visit comes in VERY handy.

    For shooting it, keep it lubed. A wet gun is a happy gun. I keep my BCG lubed to the point that it looks wet, but isn't dripping. Use a quality lube, it won't cook off as fast or evaporate as fast when stored. Again, I prefer SLIP 2k.

    Lube between the charging handle and receiver, between the CH and BCG. Lube the gas rings in the bolt, the bolt tail, surface of the BCG itself, and the cam pin with a light coat of oil. When shooting heavily, pull the BCG back part way, and you can see the three steel gas rings showing through two witness holes in the right side of the carrier - a drop of oil through each witness hole onto the gas rings (then racking the bolt by hand a few times) will help a LOT in keeping the gun running.

    Gas rings are a wear part- they need to be replaced once they start to wear. 5,000 rounds is about right for replacement, if I remember right.

    Get mags, ammo, and find a decent class nearby. I don't know where "izzerwat" is a reference to, otherwise I might be able to toss you some suggestions. Learn to run the gun, learn it's individual quirks, then start thinking about what changes and upgrades you might want. If you want to use this for HD/SD/SHTF/Zombies/whatever, then start thinking about a quality 2-point sling, quality light, and quality optic - AFTER you leartn the platform.
     

  3. r3dot

    r3dot
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    Great info! Thanks!

    You say 5.56 spec ammo. Does this include .223 Remington? Is steel case out of the question?
     
  4. CDW4ME

    CDW4ME
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    What AR are you getting?
     
  5. r3dot

    r3dot
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    Noveske N4 5.56 Light Recce Basic upper on a Spike's lower.
     
  6. WoodenPlank

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    5.56 and .223 are only somewhat interchangeable. 5.56 specs call for higher chamber pressure (resulting in higher velocity) and the chamber is cut a little differently. you can shoot .223 from a 5.56 chamber, but the other way around is a bad idea. 5.56 will generally give greater velocity with the same bullet weight. Not as much of an issue if you are just using it for practice, but use 5.56 for SD/HD if at all possible. Also be aware that zeroing with .223 and then loading it with 5.56 WILL affect your zero - maybe a little, maybe a lot.

    Steel case ammo is a bit of a debatable topic. I like knowing my gun will run it(just in case), but I won't willingly feed any AR I own steel case ammo. There are plenty of people here that love steel case ammo, though. My issue is less with the steel case, and more that most steel cased ammo uses VERY dirty powder, and it tends to gum up the gun a lot faster than quality ammo does. Plus, many of the steel loads are loaded weak (Wolf and Tula are notorious for this), and can induce more malfunctions.

    Some lots of Wolf ammo have used case moth sealants that can gum up the chamber. Also, steel cases don't expand the same as brass, and they allow more propellant gasses to get between the outer case wall and the chamber wall. This won't be as evident so long as you keep shooting steel case (as following cases won't expand as far, either), but later loads with brass cases can swell and stick to the gunk left in the chamber and do anything from have poor extraction/ejection to freezing solid in the chamber. The latter is a serious stoppage, as you will either have to "mortar" it, or even get your hands on a cleaning rod or similar to tap the case out.
     
  7. r3dot

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    I've heard some talk about break in...how do I go about it?
     
  8. WoodenPlank

    WoodenPlank
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    Lube it, shoot the snot out of it.
     
  9. SCSU74

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    Boresnake, chamber brush, chamber maid star patches, good lube. Find out what twist your barrel is and order ammo accordingly. If 1/7 heavier bullets, if 1:9 lighter bullets. Good test for gas rings is to stand the carrier group on the bolt and see if the rings can keep it up. If it slides down time for new ones.


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  10. r3dot

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    It's a 1:7. I'm still a bit confused on ammo, though. 5.56 isn't near as easy to find as .223, and the price difference adds up after awhile.
     
  11. WoodenPlank

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    .223 is fine for practice.

    Zero with your chosen SD/HD load, and learn what the difference in point of impact will be with your chosen cheap practice load. At close range, it will be a negligible difference.

    5.56 will be a little harder to find at local stores, but is much easier to find online, especially in bulk.
     
  12. r3dot

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  13. WoodenPlank

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    It would be nice if they'd specify what it is. No full part number, no bullet weight, and it says the images may differ from shipped product. (Edit: Didn't scroll down far enough. Also, that website states several times that they will NOT sell to civilians - LEO, MIL etc. only. Since they specify .223, I get the feeling the 75gr load they list isn't #8126N)

    The 75gr TAP 5.56 I mentioned earlier is Hornady part number #8126N. It is 5.56 75gr T2, and comes in a red box - it is exceptionally hard to find.

    Here is a rundown on Arfcom of the 75gr .223 civilian "For Personal Defense" loads vs the 5.56 LE TAP load.

    The Black Hills 5.56 77gr load, various 5.56 69gr Sierra Match King and soft point loads, and the (harder to get and more expensive) 70gr Barnes TSX loads are all good choices for HD/SD duty.
     
    #13 WoodenPlank, Mar 2, 2012
    Last edited: Mar 2, 2012
  14. r3dot

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    Awesome, thanks!

    I buy from them all the time. I'll stop by tomorrow and check out their stock just in case.

    I'd like to buy both 5.56 and .223 -- where are the best online places to order from? I have a Cabela's near me as well that has surplus .223, but I'd imagine their price is comparable to online.
     
    #14 r3dot, Mar 2, 2012
    Last edited: Mar 2, 2012
  15. r3dot

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  16. SCSU74

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    With 1:7 make sure it's 62g or heavier. For plinking or sd I would buy m855 green tips in bulk. They serve well as either


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    #16 SCSU74, Mar 2, 2012
    Last edited: Mar 2, 2012
  17. r3dot

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    Gotcha. Thanks
     
  18. r3dot

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    Is cheaper than dirt the cheapest place to get m855? I have to pay sales tax with them. After shipping, comes out close to .40 cents a round.
     
  19. WoodenPlank

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    It's reboxed Wolf, and comes with all the benefits (and problems) thereof.

    Every single 1:7 barrel I have owned has shot 55gr just fine - almost always with better accuracy than 62gr. Any 1:7 should do the same, and even to as light as 50gr or so in most. Green tip is less accurate than M193, more expensive, and will tear up steel targets and backstops MUCH faster. Plus, there seems to be a lot more junk M855 ammo on the market lately. Unless you are buying the projectiles and reloading, green tip is almost never the best choice for range ammo.

    Cheaper than dirt isn't that cheap - plus they were one of the first (and worst) price gougers after the Obama election - hence why I absolutely refuse to do business with them. For bulk ammo, I usually order from Palmetto State Armory. I have also purchased ammo from Lucky Gunner, Ammunition To Go, and SG Ammo - all with no issues.
     
  20. Teecher45

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    Op, you have been given some good advice, listen to them.
    My AR has a 1:7 twist and shoots 193 (55 gr.) very well. Buy some of each and see how they shoot out of your AR. Then buy in bulk.
     
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