advice for polishing forcing cone

[drenalinld]

I want to polish the forcing cone on my SBEII. The barrel is highly polished, but you can see the forcing cone is pretty rough. Why would Benelli leave it that way? Has anyone done this? If so, how? Did you get pattern improvement?

[Reloader]

If it's real bad, you have better luck having a smith use a hone on it.

If it's not too bad, you can shine it up with the methods guys use to polish the bbl.  I would use a 3.5" hull as a guide to avoid excessive polishing in the chamber. Just punch the primer out and run the rod through the hole.

[SumToy]

If it's real bad, you have better luck having a smith use a hone on it.

If it's not too bad, you can shine it up with the methods guys use to polish the bbl.  I would use a 3.5" hull as a guide to avoid excessive polishing in the chamber. Just punch the primer out and run the rod through the hole.

Get you a brake cylinder hone on drill.  do not leave it in same spot move it in and out.  Put mark on it so you know how deep to go.   It will not take much.  Hone little then check and hone more as you need.  That is if it is real bad.    Now go to the parts store or Lowes and pick up some scotch brite pads they work good for fine tune on it.  Then to clean one I take 000 or 0000 steel wool on rod.

[drenalinld]

Thanks guys. Have any of your noticed this with other SBEII's?

[mightyjoeyoung]

Are you sure its the forcing cone?  To my knowlege, and I used to sell the crap outta the SBE II, the forcing cones are just about as long as they can get without sending them to Rob Roberts.  Could it be scoring at the end of the chamber which should be hard to get as well considering the chrome lining of the barrel.  You should be able to see the transition but what you are describing doesn't sound right.  Myabe you somehow got an unfinished barrel that got a chroming?

[drenalinld]

I am not certain. I do not wish to lengthen it only polish it. To my untrained eye it looks like the chamber is pretty smooth and the transition to barrel is rough and the barrel is chrome mirror finish. I may try to photograph it.

[gobbler74]

The worst factory barrels I've seen are mossbergs in terms of factory finish inside. I've noticed some really rough savages as well. Remingtons are nothing to brag on, brownings have been the best to date I've seen.. no experience with several other so can't say brownings had THE best. I wouldnt fool with polishing a benelli crio finish.. I hear stories of polishing making for worse patterns but if done correctly I think the chances of that have to be slim. I've seen more uniform patterns come from polishing. If the shells would keep consistent we may be able to benefit..shell component change seems to be the worst enemy.