223 cast boolits

[Grizzly055]

Anyone had any experience using cast 223-55grain boolits in an autoloader like an AR?
My first try using recommended powder loads was not able to operate the auto reload slide.

[JonB_in_Glencoe]

Grizzly055,
welcome to the forum.

A quick search of "AR Cast" in the "google custom search" box yields this...
http://castboolits.gunloads.com/google.php?cx=partner-pub-6216953551359885%3A1942134700&cof=FORID%3A9&ie=ISO-8859-1&q=AR+cast&sa.x=12&sa.y=11&siteurl=castboolits.gunloads.com%2Fforumdisplay.ph p%3F18-Swappin-amp-Sellin&ref=&ss=926j172336j8

I posted some of my preliminary results cycling a AR in this thread (post 44).
http://castboolits.gunloads.com/showthread.php?302707-223-AR-load-data-help&p=3714049&viewfull=1#post3714049

[Moonie]

16-18gr of H4895 should get you working, but there are lots of posts about this on here.

[runfiverun]

with a filler [18ish] would work, you need more 4895 to cycle the rifle.
I'm over 22grs. in my 3.

[Moonie]

16gr of H4895 with no filler works in our intermediate length gas upper with 55gr boolits. My 6.8 takes 18gr with 134gr Ideal boolits.

[Harter66]

19.0 H322 with the NOE 225-55 @ 62 gr . Check jacketed data ,I'm working from memory .

[trixter]

I use 19 gr of Ramshot TAC, and it cycles my AR just fine.

[too many things]

there are so many powders out now would be very hard to tell you . what old guys used is what we like there are a 100+ new ones now, so you can search the web for weeks .
BUT old don't mean we don't know from mistakes

[JeffG]

I using 19.8 grains H4895 with the Lee 225-55-RF in M&P 15 and that works just fine.

[Soundguy]

Anyone using trail boss?

[farmerjim]

OK I finally got off my but and started working on a cast load for my AR. I used a 55 gr lee bator PCed and GC. 20 grains of H4895 cycles fine, but does not lock the bolt back on a empty mag. I may try 20.5 tomorrow.

[farmerjim]

I just tried 21 grains cycles fine and locks the bolt back on an empty mag.