My buddies 340 Weatherby is fond of 210 gr. TTSX's and RL-19 and he's fond of the 340... I should know; I reload for him. The 340 is an impressive round that never got the credit it was due, IMHO. His is braked and not at all unpleasant to shoot with that load. He's a Weatherby fan, as in 300, 30-378, and 340. He formerly had a 257 but that now lives in my safe.