Just to add some perspective, here are standard stock dimensions for popular doubles, from the 1940 Shooters Bible:
Parker: 14 x 1 5/8 x 2 1/2 (LOP of 13 1/2 to 14 1/2, drop of 2 to 3 1/4 available at no charge)
Fox Model B: Length and drop "about" 14 x 2 3/4
Sterlingworth Skeet and Upland Game: 14 x 2 5/8
Stevens 530: 14 x 2 3/4
Marlin 90 OU: "about" 14 x 1 5/8 x 2 1/4
Iver Johnson Skeeter: 14 1/8 x 2 3/4
Hunter Special: 14 x 2 3/4
Winchester 21: 14 x 1 9/16 x 2 1/2 for 12ga; slightly higher for 16 and 20
Winchester 24: 14 x 1 1/2 x 2 1/4
Savage 420/430 OU: 14 x 2 3/4
Remington 32 OU: 14 x 1 5/8 x 2 1/2
Browning Superposed: 14 1/8 x 1 5/8 x 2 1/2
Almost all shorter than current guns; many with more drop.
