Broke another bolt.... your thoughts??

[Klem]

Well, this snack sure has turned into a three-course meal.

Your loads are hot and hammering those bolts. If you can square the lugs and share the load you might get another 500+rds before the next one cracks. Or...you can take your foot off the accelerator and enjoy shooting that gun until the barrel wears out.

Option A costs nothing.
Option B costs time, effort, probably money and does not address the cause.

All the more technical and involved solutions here are based on the assumption your loads are normal, and they are not.