A friend of mine shoots one in his SBEII. He also shoots Nitro 4x5x7's out of it and it has a very niice pattern. Definately a 60 yard gun. I've never heard anything bad about them either however there are a lot of good chokes out there which cost a bit less. Indian Creek, Primos, Pure Gold, just to name a few. I also want to pont out that it's not just the choke which contributes to a good pattern. It's a combination between the barrel, choke, and loads. Do some research before you fork out $125 on a choke. You might not get good patterns with the loads you are currently using in a Rhino and may have to switch loads. What gun do you shoot? I'm sure a lot of other guys on here will chime in and help steer you in the right direction.