Genreally the 2 powders of choice for the .223 are Benchmark & H335. I have used both, and prefer Benchmark for most applications.
Contrary to popular beliefs, you CAN get great accuracy with "lower than normal" loads and still have plenty in the velocity department to kill a coyote at the distances most of us incur.
I have found that 22.5 grains of Benchmark with a 60gr VMax is a very, very accurate load that runs about 2800fps. Not a speed demon by any means, but it puts 10 rounds in 1/2" consistently out of one of my rifles. It may or may not give you those same results. Every rifle has it's own preferences.
If you are looking for definitive load data, www.hodgdon.com is a great place to get loads. I also suggest the BR4 CCI primers as was mentioned above. Just start low, work up .2 or .3 grains at a time, and watch for pressure signs.
Oh yeah.......HAVE FUN! /ubbthreads/images/graemlins/grinning-smiley-003.gif
