Recoil tolerance is a personal issue.

Some people just tolerate getting bounced around more than others.

I found a site that tries to measure the intensity of the "punch" of recoil.

See-
www.accuratereloading.com/recoil.html

What is your limit?

I consider a practical limit to be when one has problems getting a second similar shot off in a timely fashion.

What would other forum members set as a practical recoil tolerance level?