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Posted: 4/1/2011 3:35:21 AM EDT
| Just a quick inquiry: Is it necessary or better advised to have small base dies for loading .223 to run in AR-15 platform guns? I have read this is supposed to improve cycling reliability in an automatic rifle but more interested in real world experience versus slick marketing schemes. |
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A big NO on that. I have been using standard dimension dies for my AR's without a hiccup. As long as you set-up your dies correctly, you will have no problems. Unless you have an extremely tight chamber.
I would say pick up the standard dies, load a few rounds sizing the cases using the "recommended" set-up in your reloading manual, and shoot. If you think they are hanging up in the chamber, try polishing the chamber using some polishing compound (Flitz). Might make all the difference. |
| No its not necessary, some people think they can shorten the life of your brass too, I dont know I have never used one. I just use a standard full length sizeing .223 die for my AR and it eats them up. If you want to get one, I'm sure it will work just fine for ya, but its not really needed. |
| I have used regular Hornady and Dillon dies with no issues. I did have to shave about 0.010" off of the shell holder to get the Hornady to size down enough to run in my AR. Dillon dies in my 550 work great. Using a case gauge is best, but you can also size and then try the empty brass in your rifle. Place the brass in the chamber and slowly close the bolt. If it fits properly, little to no pressure will close the bolt. This will ensure function in your rifle, but it may be tight in others. For a good fit in everything, use the gauge. |
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