I am loading on an LNL progressive using a powder dispenser. I find the LNL bushings quite accurate. While 45-70 may not be my critical round, I load a neck turned 300 WSM load that has nearly 0....like .002 TIR. It shoots from a bedded Savage into 0.6" at 100 yards. I don't feel the press is holding me back.
I prefer the Hdy LNL to the Dillon plates.
I also have a lock ring technique that helps. I spin the lock ring down to just touch the bushing, then I put upward pressure on the die when I final tighten the lock ring. Seems to create food alignment...
With pistol, I don't bother....