Originally Posted by Dan1960
I have owned my ar15 for at least 10 years and recently bought a slightly used ar10. Due to the shortage in ammo a short time ago, I decided to get into reloading. I have not done any 5.56 yet but I have for the .308 and was amazed at the accuracy increase over factory Winchester. Would you have the information to find the best place to find information on bullet, powder and primers for reloading 5.56. Your primer here has shown you are extremely knowledgeable with the AR platform. As I was taught from my father, there is no such thing as a dumb question. Thanks you for your time and article
Note: I claim no expert status where reloading is concerned. That said, I am fairly experienced with pistol cartridges. Still learning rifle stuff.
FWIW, my experience reloading for a AR was pleasantly surprising. I built some test loads with some Remington 55gr bulk bullets using AA 2460 and without much in the way of drama, was on my way. About mid-way through my test loads I noticed that my groups were smaller than the PMC factory stuff I was using. As I progressed though the test series, groups kept closing up. This was without playing with overall length or other such variables or getting deep into the weeds with component selection. Just middle of the road settings with middle of the road components for the most part. Someone who spent a lot of time playing with the variables should be able to achieve truly impressive results. My reliability was 100 percent and there were no negative issues to contend with.
Long story short, on my first attempt, I was able to build ammo that cut groups sizes in half vs. decent (if not stunning) factory ammo.
As for "Best" choices, that would be highly subjective. My selection process was probably a bit too low tech for many.
I ordered a box of cheap bullets online.
I went into my reloading books and picked several powder options from the middle of the list. Not too fast, not too slow seemed the best starting point for my first attempt with a rifle cartridge. The one I found in stock at the time for the best price was what I bought.
Bought a brick of primers.
Processed some of my range pick up brass. (Sorted by head stamp. Trimmed with a Lee hand trimmer tool. Full length sized with Lee Dies.)
Went to work building a variety of test loads.
Unfortunately these days, finding what you want can be a problem. I find myself settling for "close enough" where powder & bullets are concerned. If supplies where you are are good, then you're ahead of me.