[HELP] Tight offset bend

[Hawkeye]

In any metal requiring that tight a bend, I'd be inclined to go with forging. Cherry red, hammer it over the edge of the anvil, reheat and repeat for the other bend. It may be advisable to 'upset' the bends slightly, if full strength of the 5/16" stock is required. After forging, heat it again and allow it to cool slowly to relieve stress. Then, if required, harden and temper to suit the desired characteristics.