Hey, IM goign to give you a big help on info right here. I am currently running a Group buy on the 458 SOCOM from the designer of the round Marty at Teppo Justu
Teppo Jutsu Site also Tony Rumore at Tromix makes a solid upper !
Below is the link to my Group buy with info and even more links and info
AR15.com 458 SOCOM group buyand there is a thread, which has 29 pages of info loading data and all the goodies about the 458 SOCOM. Personally, the person I have found to be very informed about this round, other then the owner Marty at Teppo Jutsu, would be SHIVAN. He is a board mond somewhere on here but manages to be all over the place at once. Also others I know who have them and know tons are NoPlay, Fluxion, and I think Longshot_Va
anyways I hope this gets the ball rolling for ya. Its late at nite and i need sleep before class tomorrow or else I would have written you a book, but these above mentioned guys can do much better then I. I will hunt for the 29 page beast and toss it up here as well.
heres the beast thread with 29 pages stocked full of 458 goddies
458 info central