I have ONE guy I buy reloads from. ONE. I have dealt with him for 12 years and have never gotten one bad round. His ammo is as nice looking as factory, is all the same make and any time something is changed in his rounds, [different product, becomes unavailable et al] he makes some up and chronos them along with trying function in several firearms. If he runs his stuff F/A in a gun while he is holding it he must have a bit of confidence.
I'm personally not a fan of SAs mags. Had to many problems with them. Spend your money and buy a few good ones rather then a lot of so so one's. You will be happier in the long run. WWB runs OK and you can get it at walmart pretty cheaply. MFS [hungarian] is pretty darn good ammo, VERY clean, and quite accurate for cheaper stuff. Much better then WWB in my opinion. Comes in a green/white/orange box, almost no residue at all, don't know the powder used but it is CLEAN as heck. Even the empty cases are almost perfectly clean. Try some, I'd bet you you will like it.