pretty sure I removed more than that, lolRemove 1/4" from the front of the Ruger feed lips and they work pretty good.
My understanding is the older .223 mags were better, but a lot of people had issues with the newer ones. I never tried the older ones, but mine wouldn’t feed .223 or .223 AI reliably.Were there two versions of the AI mags for 223? I have heard of some that were bad about splitting, and others that run great. I have a pair of AI mags, and a pair of MDT 223 mags. All of them run great. The AI mags will hold 11....
I think if anyone could make it work great, MDT would based off how well their 10/12 rd steel mags run.I've got some of the original AICS mags from 10+ years ago and they've worked. My MDT mags also work fine.
I keep trying to convince a manufacturer to make a 20-round double-stack, single-feed .223 mag for AICS-compatible bottom metal, but no takers.