Lyman are made in China these days. Too sad.
My Saeco 640 drops a round bullet and it casts as good as my BACo and Brooks molds. However, it drops at 0.410", so have to run them all through the 0.409" lubrasizer die prior to loading. Saeco is part of Redding, which has maintained its quality by continuing to make its products in the good ole USA.

I have a single cavity #740 mold.  It's not super round.  I'd say that the driving bands average 0.408", but vary from 0.407" to 0.409" depending on which band you measure, and whether it's on the seam or not.

I cast in 20:1 and am really happy with it at short range ( 200m).   

Here is a target I shot from an NRA legal prone position at about 200m.   This is not an unusual target, the rifle has shot this bullet this well many times:

Ten shots prone at just over 220 yards. Vertical 0.75 moa, horizontal 1.5 moa.

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I do trust the money bullet more as distances get further.

Chris.

Whoa! Are current Lyman molds really made in China? 
The newest mold I own is from when China was still a feudal country- like when the 'Sand Pebbles' was current politics. Well, maybe a couple are newer, but not marked Lyman either.

My 740  saeco single cavity drops at .410 and shoots well but I bought a 45 caliber 485 grain last year, used,  that cast way out of round (,456 to .459) and redding made a new cherry that cast .458-.459 bullets, so I guess its probably luck of the draw. but Redding did stand behind their product.

I like the BACO molds a lot.  They are made very well, and tolerances are as good or better than any custom mold I own.

As long as the design works well with your chamber you will be happy.  I'm a big fan of the 409400M4 which is what I shoot most out of my Shiloh.

I've also used the Hoch .40 cal BPCR mold but it was pretty terrible accuracy-wise compared to the Saeco or BACO mold.  It just didn't fit my rifle well.

Chris.

Chris, John, thank you.   

John, I had not thought of that 640 as yet but sounds like it could be a candidate in my 40-63.    Twist may be slow but close.    

I've been trying to prioritize some dollars with the intent of eventually getting the Creedmoor, 400gr Money and the Saeco.

The Saeco is reduced grooves or no?

May I suggest taking a look at Accuratemolds.com. It is an incredible resource for the needs out sports entail.
 I have ordered half a dozen molds from him in the part few years, both single and double cavity.
   I use the doubles with the Cabin-Tree clamping handles and have found very little little variation between cavities unless I have deliberately ordered them slightly different.  (I do use a large capacity older Lyman bottom pour pot though)

He does not do round nose or pointed bullets. All his CNC lathe-cut molds require a .18 dia meplat.   He has a very large catalogue of molds he has made and drawn them up in detail; including a wide range of nominally .40 cal rifle bullets. Any of them can be modified by just changing dimensions.