22 Nosler vs 223 Remington

The 22 Nosler next to a 223 Remington. The Nosler has a case capacity of 35.6gr H2O while the 223 has 28.8gr so its about 25% bigger and runs off the same bolt face. I am running a DBM and using AI 223 magazines so i don't know how it would feed from an internal magazine.