ICC
A fully lead-free 45-grain copper/polymer frangible training load with a lead-free primer and 2,925 fps rating.

ICC 223-045PNT-B combines an unjacketed 45-grain copper/polymer frangible projectile with a lead-free primer. ICC lists the load at 2,925 fps and 853 ft-lbs from its test setup, and packages it in 20-round boxes. The projectile-and-primer combination removes the two usual ammunition-related lead sources from an indoor training session.
This is a specialist training load for approved hard targets and backstops. Confirm the range permits it, follow the target maker's distance rules, and test feeding, cycling, and point of impact in the rifle. Its hard-target breakup does not make it a general-purpose defensive or barrier load.
Add the ICC .223 Rem 45gr 100% Lead-Free Frangible to your build and see how it enhances your platform.