I just purchased (and can't wait to get my grubby paws on) a DPMS preban config AP-4 .22 lr  upper, that I am planning on attatching to my JP-15 lower until my Mega lower gets in.  Currently I have a load of  Remington Golden Bullets that my Advantage Arms conversion for my Glock 21 seems to love forsaking all others and my Sig Trailside digests without complaint.  Would just like to know what ammunition you would reccomend for this, as the DPMS website only warns against using  ammo with extensive length, not enough/too much powder, a waxy coating on the bullet.  Thankyou for your knowledge and time on this.

I've got 2 DPMS BA-22L's along with AA Glock 19 and 20 conversion units that digest Remington Golden Bullets by the truckload.  I've had OK luck with CCI Mini Mags in all the .22 setups as well but the Remington ammo gives more consistant performance than the Mini Mags and at $10 bux per 525 for the Remington golden HP's in bulk you can't go wrong...

Awesome, I don't have to rush to the store and get yet another type of ammo, now if UPS would just hurry the hell up.  Thanks a ton man.