Big Uncle has me nervous that I shouldn't ignore my gut instincts about adding a second recoil lug on a big bore rifle project.

So my question is this:

If you were worried about a stock cracking due to high recoil - bedded in Devcon steel - how many shots would it take for you to be comfortable that it's not battering your stock?

I'm considering getting a stock, bedding it, trying to break it, then if it breaks, I know I have to add a recoil lug before I get the exhibition stock, if it doesn't, I can be more confident that I won't break it.

I'll be buying and bedding a "fitting stock" to modify and send to the duplicator anyway, so it's not a big issue for expense, just wondering if I put 50, 100, 300, or XXXX number of rounds through THAT stock and the bedding holds, is it ever enough to be confident that the stock and bedding is sufficient?

My motivation, of course, is to eliminate the contact points on the barrel. With the rig I'm planning, one barrel is a high recoil round so it would potentially need another lug, the other barrel would not, and I don't want to have that barrel partially bedded.