Hi Jonathan,
Yes - I bought the ammo from kynamco recently. The accuracy is good. I am using .375 H&H in 270 grain soft nose. I have shot a roe buck with the ammo already, at short range (60m). It dropped on the spot, but then again the bullet passed straight through the top of its heart and exited near the diaphragm.
I shot a stag in the chest at 200 and it was still standing 5 minutes later. I am currently blaming poor shot placement, but perhaps this is compounded by having just "drilled" it with a round that didn't expand. Many people would think that a round that big anywhere