24 inches was going to do 25 but 24 felt better. It balances close to the hinge pin. I have a Baikal 45-70, I know not the best double rifle, that balances very close to the same point. The person that had the 45-70 before I got it added lead to the stock to add weight and help with recoil. worked on the barrel crowns last night for the slug gun trying to get them absolutely square. Slow hand file work take a couple of passes check take a couple more. I hope my mold gets here soon. Ready to figure out loads for this beast.