I finally used up my supply of old factory Federal "High Energy" 140 gr. TBBCs that chrono'ed 3,078-3,102 fps in my 24" model 70. I've had great success with these on all kinds of big game.

Would you have any suggestions on how to replicate 3,100-ish fps with Northfork 140gr or 140gr TSX? If so, what velocities, bullet, which powders?

I've tried H4350 up to 54.0 gr with the TSX but only get around 2955fps; with no obvious signs of pressure. This is the max listed in the Barnes reloading manual. Barnes is able to get 3,030fps.


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