That is a very good idea Surculus! Why not see if it will fit under the ram before you do anything. And it's possible it may not be too stressful on the lever assembly as is as long as you use soft lead.
Chamfering the chambers may also be an idea, though I'm not sure if it would actually reduce much stress or not to make a difference.
Chamfering the chambers may also be an idea, though I'm not sure if it would actually reduce much stress or not to make a difference.