For a couple of years of reloading, I used the Lee lube. It worked well, but every-now-and-then, I would have too much lube and would dent the brass, or would not have enough and would have the brass hang up.
About two months ago, I was reloading and happened to have a tube of Permatex White Lithium Grease on the bench. On a whim, I put a little on my finger (and I mean a LITTLE) and lubed the outside of the brass. I used a Q-Tip to lube the inside and put it in my Lee press. Activating the handle, I couldn't believe the difference.
I would be stretching the truth to say that there was zero resistance, but it was darn near zero! WOW! What a difference!
"OK," sez I. "Will the use of the lithium grease effect the performance at the range?"
No. Not one whit. No difference - nada. I've used it on several calibers and several loads within each caliber. They have all gone "bang" at the proper time and have made no difference in the on-paper performance.