As a newbie reloading for my AR
1st I would go with hornady 55g FMJBT as they are one of the least expensive better quality bullet.
I purchased some remington .224 bullets that side by side with hornady look like crap.
Also you will be working up a load for what ever you choose to start with. I really think as some will ask "What are you shooting these out of?
Although not a good group by standards but for my first batch of reloads for my AR and the conditions tested in not horrible. I used what I had left of IMR4895, CCI #41 primers,hornady 55 FMJBT and LC cases
http://www.northeastshooters.com/vbulletin/threads/118292-1st-AR-.223-reloads?highlight=
Just from a new to reloading point of view.
I have been reloading for my Garand 30-06 using varget powder starting @ 10% less than the minimum specs from hornady #7 manual and working up.(350 rounds so far)
Lets just say the first batch was less than stellar. As I progressed with the powder charge accuracy increased. I then on my last 60 rounds ran out of VARGET. Things where looking good with the varget. Shot my best CMP 100 yard reduced target format score of 406. prone sitting standing A HUGE increase for me, mainly from reloads.
NOW got to the point where I use some 4895 I have on hand and I shot them today, 50 degrees blue sky just a nice day for shooting. My starting load of IMR 4895 performed, well lets say it cycled the action and that's about it. SO you can reload match bullets to someones"this works great in my rifle" loads. Or get comfortable with reloading, build up a load to your rifle and practice your skills.
Im reloading for my AR because I want better accuracy than steel case ammo and a better price than some of the factory stuff.
My AR that I shoot most is a Stag H2 with detachable rear sight. I ran several hundred rounds of 75g match grade ammo from hornady and I just could not get a grouping period. I then tried some 62gr Remington Premier Match Ammunition things tightened right up but at 28.00/20 rounds not my cup of tea for 100y range target shooting.
to date the best factory ammo I have/used is PPU loaded to M193 specs. My skill set or lack of gets me just inside 2" off a sand bag. Now why I tried match ammo in a run of the mill service rifle is beyond me. Maybe I thought I had a hidden match gun in there somewhere
[roll eyes].
Varget seems to be the most used amongst the reloaders that I talked to face to face for AR,Garand, and M14 shooters. I also know a few 308 bolt gun shooters who like it also. The claim to fame is the stability of Varget in large temp range.
I recommend as I did buy a few different bullets and a few 1lb jugs of powder. Keep track of how each load does. You will find something that your gun likes OR you can just load up some 55 grainers with known load data and blast away.
Its all fun.