I sent Great American a Beretta Silver Pigeon. I asked for an english stock. (This was before Cole has selling stocks.) They had my gun for over a year. Every time I called, they had a story. Finally, I said enough, they had never even started. Well they refused to send the gun back until I paid them an absurd amount. I felt I had no choice, so I paid. In return I only got my gun back in original condition.

To be fair, some have reported good results with them.

Both Denli and Luxus deal only in Turkish walnut. Denli has some nice wood. They only take payment via a bank wire. Because of their location, shipping charges are high. But may be worth it for some their blanks. Here is the website for Luxus. http://www.luxusgunstock.com/
Some of the blanks on Luxus are not ready to turn.

Here is the website for Cecil Fredi. Very nice English walnut at good prices. The wood is dry, stable and ready to turn. http://www.gunstockblanks.com/

For a 375 H&H pay close attention to grain flow. Not just at the pistol but also further up. I built one and decided to use a laminated stock from http://www.rifle-stocks.com/

Pete