Well I'm probably 20 hunts in with the extended forcing cone. I had my doubts about it, but so far just by some of the shots I've made it seems to be the real deal. I'll probably have it done on some of my other guns as well.

What do your patterns look like with the lengthened forcing cones compared to the patterns it threw with the factory forcing cones?

Rob Roberts has done both my M2 and SBE. Well worth the money.

From the RR website. You’ll likely pay more for shipping both ways. I’ve had two guns fully tricked out by RR and taking another one in February.

We recommend doing this work to every shotgun. For your money, this is the most cost effective thing to do to receive the best results in patterns and recoil reduction. The area in a shotgun barrel just in front of the chamber that directs the shot load into the bore is called the forcing cone. In most production shotguns this forcing cone is very short and at a very steep angle. We lengthen the forcing cone to 3 inches and and polish it. By lengthening the surface, several great things are achieved:

Velocity is increased by reducing the sudden friction encountered with a short forcing cone.

Felt recoil is reduced because the reduced friction allows the shot load to smoothly enter the shotgun bore.

Pellet deformation is dramatically reduced because the shock of suddenly constricting the shot load is eliminated giving more even and dense pattern.

FORCING CONE LENGTHENED $75

I had Briley lengthen my the forcing cones on a couple of beretta semi autos in the late 90's...it worked well on lead bird shot loads, as the lead easily deforms in short cones and then is a flier out of the pattern. The longer cones ease the transition of the lead bird loads into the bore which allows less deformation and more pellets remaining in the pattern.

This is an advantage to the games of skeet, trap and sporting clays...along with a good deal of dove hunting.

Now, steel shot is much harder than lead and does not deform, so if you are a waterfowler, lengthening the cones is not cost efficient.

I don’t know who this Rob Roberts is but sounds like he would be someone worth listening too. It’s unfair to think he is compromised just because he is in the business. Do you not listen to a mechanic about your car?

My friend has his forcing cone lengthened. No idea who he sent it to. He did pattern it last august and was happy with it. Says the recoil is less as well.