I can second the recommendation by 470evans. I just had a Beretta O/U 9.3X74 regulated by JJ Perodeau and the work was exceptional. He took my Beretta from a rifle capable of only producing a reliable 7 to 8 inch pattern at 100 yards to one that can easily produce a 1.5 inch group at the same distance. The estimate of cost was dead on and the delivery time was just as good. I just can't ask for better work. The claw mount bases for the scope were remounted to relieve some stress, the barrels regulated, and the gun looks untouched. While I realize that this rifle is a "beater" in the world of double rifles, it was treated like a best quality double, and will shoot with any of them thanks to JJ.