rainierrifleco - IF one was allowed to ADD a Rem M600 to this post then I could say I've had exactly one (1) bolt handle break off since the mid-1970's. Sent back to Remington and it was replaced and returned to me promptly.
Of the other M700's I've enjoyed over the years - zero (0) bolt handle failures. Like the bumper sticker states "S-it Happens". Homesteader.