AR 15 reloading Dies?

[TrxR]

I am putting together a AR 15 with a 19" IBI barrel in a .223 Wylde. I am going to be trying PRVI brass, CCI Primers, Sierra 77TMK or 77MK with IMR 8208XBR at first. Anyways I am wondering what dies I should try. I was thinking Forster 2 piece Benchrest set with the full length sizer and seater?

Would they be a problem ? Should I try something else? Like a Redding set?

My long range 308 I am using a Collet neck die and redding body die when needed. But this AR is a little different.

Thanks

 

[watercam]

If accuracy is important to you I would use a bushing sizer w/o the expander ball. Seater is your choice. Either company makes good dies. Personally I would use a Redding Type S sizer and Forster seater. Choose a bushing that gives you .003"-.004" neck tension.
Have fun!

 

[TrxR]

Whats the easiest way to figure out what bushing i need when using virgin brass?

Is it load a bullet measure the diameter then subtract .003 to .004? What kind of spring back should a person expect from the brass?

Thanks

 

[rwj]

Whats the easiest way to figure out what bushing i need when using virgin brass?

Is it load a bullet measure the diameter then subtract .003 to .004? What kind of spring back should a person expect from the brass?

Thanks

The “Tech Talk” text below is courtesy of Redding. Subtracting .003”/.004” as recommended by watercam is a good idea because you are making rounds for an autoloader. The .001”/.002” recommended in the Redding text is common for bolt actions. Full disclosure, I do not represent Redding, but I do use their products!

— Tech Talk — Bushing Selection and Use
The easiest way to determine the proper diameter bushing, is to measure the neck diameter of several loaded or dummy cartridges with an accurate micrometer. Subtract .001”–.002” from the average neck diameter and this diameter bushing will generally size case necks to create the proper press fit for the bullet.

Another method is to measure the neck thickness with a ball micrometer or our Case Neck Gauge (see page 33). Double the neck wall thickness and add this number to the bullet diameter. The result is the neck diameter of a loaded cartridge, and bushing size can be determined as above.

After loading several cases, it’s a good idea to test the neck’s grip on the bullet. The simplest method is to push the bullet in a loaded cartridge against the edge of your reloading bench with moderate hand pressure. The bullet should not move easily in the case neck. If the bullet pushes deeper in the case, select the next smaller bushing and start again.

When using your bushing die, we have found that lubricating case necks and installing the bushing numbers down may improve results. Many experienced reloaders like to adjust the die to size 1/2 to 3/4 of the case neck. This has been shown to improve accuracy in most instances.

 

[Dusty Stevens]

The AR series from rcbs does a little small base sizing and work very well for a wylde chamber and the price is right

 

[T-shooter]

I use that Forster B/R set with the floating expander ball and get next to no runout.