In a OM Ruger BH 4 5/8".
I have played with all of the 210gr bullets and like the Hornady 210 XTP the best for a JHP bullet. Have used the usual W296/H110/2400/Blue Dot powders all with good results.
That said the Elmer Keith load of a H&G 220gr cast lead over 7.5gr Unique has been my long time favorite.
Sold my H&G mould and have many regrets.