Does anybody have any experience or had any issues with winchester value packs of 555 or 333 in .22lr copper plated…specifically pertaining to CmmG uppers. I use the Federal value packs of .22lr from wal-mart and they function great except for the fact that they just raised the price from 15.47 to 19.97…so I was wondering if you guys might have used this ammo. I have the CmmG M4 .22lr…