I am wanting to get into reloading and am having a hard time finding data for reloading the .223 / 5.56 for coyotes. I want to know if I can reload once fired Remington brass that was .223 to 5.56 specs. I have been saving all of my once fired brass from everything except the .22's and want to make sure before I reload something that is a little to hot to be shooting.

Thank you for all the help you can give!!!!

5.56 charges are roughly 1 grain less than 223 charges.

Thank you High Desert Wolf. I wanted to make sure that I didn't mess up. I am getting started this winter and want to make sure I have my information correct before I lay everything out and start to load.

There was something about 5.56 case capacity being different than 223 I read somewhere,but 5.56 would also be military cases.Where you located Okie?I'm heading to Okieland next week with my AR to harrass hogs and turtles.If your in south central part we maybe close!Also make sure you use small base dies if your reloading for a semi verses a bolt gun!

All of mycases are trimmed after the first firing and then discarded after five reloads. iweigh my cases when i am after real accuracy.There is this general belief that military cases are always heavier than .223 commercial cases: This is largelyuntrue. Indeed, some commercial cases are much heavier and, therefore thicker, than any US military case ever made. Watch out for foreign military cases though: Some are very heavy.

http://www.ar15barrels.com/data/223weights.xls

When I shot NRA high-power, my go to load was either 69 grain or 75 grain BTHP's with 23-24 grains of Varget. Very accurate load for just about every AR that used it.

I dont!! and my loads work fine in all my semi autos. id say dont use small base dies unless you have to. for instance if you are having trouble with your bolt closing completely then you may try small base dies but if you dont then dont worrt about it.

Good point HDW about the dies!I have bolt closing problems is why I said that but I use strandard dies.I took .010 off the shell holder which does the same thing to get case worked closer to the webbing on base of shell.Small base dies about7 bucks higher,shell holder about 5 and you still have standard dies for bolt guns that way.

If you have military cases with a primer crimp , you may want to get a primer pocket swaging tool. A lot of manufactures make them, I use an RCBS one , comes with both small and large swaging capabilities.I use it on all types of mil spec brass.

Depends on what your rifling in the bbl. is , as to what bullet & charge and powder, primer etc.. I see Mag. primers used on some reloading data to get max loads.

I have a remington 700 that I had the chamber opened from 222 to 223. I use a magnum primer behind WW 748 powder with a 55 grain bullet. This has been a very accurate load for me.