we are civilians, and can get 64 gr softpts. On animals, such 223's do BETTER than 7.63x39 ball rds do! Since you hear little complaints about ak's failing to stop people,what does that say about 223 sp's? Just load every other rd ball, if sp penetration of windshields worries you.most guys figure on one hit with every 50 rds anyway, apparently, since they favor carrying 300-400 rds. Just how many guys do you FANTASIZE that you can defeat by yourself, anywaY? This isnt york's bolt action world anymore,and it hasnt been for 60+ years. You WILL be by yourself, best plan for same