Bullet Mold .378-312 BPS 608 
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I tried some a friend gave me--with 8 gr Uniq good at 200 yd and a heavy crimp...a small amount of leading----

I had one when it first came out. It shot well enough in my 15 twist Badger barrel silhouette rifle. 

I did not need a bullet that light, or so I thought, and I sold it.  Later, I reconsidered after turning that rifle into an offhand schuetzen rifle wearing a new buttstock. I got a second RCBS thinking it was the same and it would not load into the rifle. I mic'd it and found the newer one was larger on the nose and would not enter the rifling like the first one.

Suspecting that I got a bum mold, I called RCBS. After some conversation I learned they had a new cherry and in their estimation, had corrected what had been and undersize product. I asked if I could get one of the old ones from them or if one could be made?  They told me the cherry was repurposed (ground) into something else.   

Now I would love to have the old one back BUT, with NOE and other makers, I think if I really wanted a 300 - 315 grain class bullet, I could find something.

The point here is, if it a new (er) mold post 2002, it may not fit well in the rifle of choice. Beware.

Bruce,
The vitals as marked are not viable but they give us a reference.  The targets without any additional markings were impossible especially at their respective distances, the gal that paints them does an exceptional job with the natural look, especially the zebra -without the saddle becomes invisible in the mid day sun. 
It's humbling.
Greg

Well, I have bought one from a reader of these posts. He claims exceptional accuracy in his Hi Wall. We shall see.