I am looking at the FN Five Seven in 5.7X28. I love the idea of a high velocity, light weight round and a platform that carries many cartridges, but there are some glaring problems with the FN. Price, while not unaffordable, is steep. Also, it's somewhat large for CC. Are there any other options along those same lines I may be overlooking? I also like the idea of the 7.62X25, but to my knowledge nothing worth carrying has been made in that cambering for like 50 years. Already have a G19, so not looking for another 9MM. Thanks.