"If could be done someone would've already done it" think about how many times people have thought that through out history and have been wrong. What if we used stronger brass to help compensate for the pressure? I agree, 223 isn't a deer gun. It wasn't meant for deer, yada yada, I get it. I would never use it at 300 yards for a deer. But I just figured it would be a good reference since it's such a popular game animal. I'm saying we take every dang thing into consideration. Maybe there's a chemical that will stay dormant until the gun powder ignites and then it reacts. ;Chemistry has been in my mind and I just figured maybe it had some type of relevance)Outside of the box guys... I know there's a bunch of smart guys on here, definitely smarter than me. But I think it can be done. We could take the best characteristics from each bullet, not just 22 caliber but say 7mag or 308 and apply it to a 22 caliber bullet. We can put a man on the moon with a computer "dumber" than my phone, but we can't make a 223 bullet more lethal at a little bit farther range?