I have had so many requests for break pics I thought I would post them to avoid repeat emails. The pic below is my 3 standard breaks, .750", .875", 1.000". The .750 is threaded 1/2-28 tpi, the other 2 are threaded 5/8-24 tpi. The second photo is of a blank and a finished .875 to fit a Sendero.
If you look closely at the above photo you will note the ports are closer to the top of the break than the bottom this gives the proper amount of down thrust (very little) to keep the rifle level during recoil. Looking at the break from the top the rib is narrower than the bottom.
Here you see the .750" break installed on a standard or packing weight long range rifle.
Here is the 1.25" 5 port break.