I notice Olympic ammo on your list, there are 2 brands of ammo to stay away from, American Ammunition (Amerc), and Olympic, these two are probably the worst quality brands of ammunition available on the US market.
Here is a link to the Ammunition Review and Reference on AR15.com, the listings are derived from reports from people who have actually used the ammo in question, they are listed in the order of preference, note that Olympic is the brand at the very bottom of the list, fully 50% of the people who have used it will never buy it again. Note that below the list is a note about American Ammunition (Amerc), there is a specific notice to avoid American Ammunition at all costs. Amerc has the dubious distinction of blowing up more Glock 40's than any other brand of ammunition.
http://www.ar15.com/content/page.html?id=210
Here is a link to the Ammunition Review and Reference on AR15.com, the listings are derived from reports from people who have actually used the ammo in question, they are listed in the order of preference, note that Olympic is the brand at the very bottom of the list, fully 50% of the people who have used it will never buy it again. Note that below the list is a note about American Ammunition (Amerc), there is a specific notice to avoid American Ammunition at all costs. Amerc has the dubious distinction of blowing up more Glock 40's than any other brand of ammunition.
http://www.ar15.com/content/page.html?id=210