Home Forums Hunting & Shooting Gunsmithing removing shotgun forcing cone

Has anyone ever removed their forcing cone one their shotgun......what were the results
BB

Lengthening the forcing cones on a shotgun is the number one thing you can do to improve performance. Not only does it help hold the shot string together for a more uniform pattern, it helps reduce recoil.

What does it do to the chrome-lined barrel?

The proper question would be... "What kind of damage would you sustain trying this to a chrome lined barrel"?

Let me modify my question has any one did this themselves. And how did they do it and what success.
Thanks
BB

You can buy the reamers and do it yourself. They cost quite a bit more than what a good 'smith would charge to do the work for you, not to mention he'll have experience and you don't. Some barrels will become very thin after the removal and possibly become unsafe.Some recoil reduction will probably be realized, and patterns will probably become "tighter", although maybe not better.
It is definately something best left to those with experience.
Good Luck,
Rick

This why I quit posting here people don't realize my experiance, so , good by to all and be safe.

Huh?

Yeah, huh?

Perhaps you won't have such difficulty if you post your resume first and then your question.

So, you need to ask the question, then get upset at the answers?

How many ways do you think there are to do it? Sandpaper? Rat tail file maybe?

As was explained, the proper tooling would cost you more than just paying somebody to do it, and do it right. By asking the question, I'm going to assume that you don't have the proper tooling, so agree that it would be easier, cheaper, and safer (win, win, win) to just let somebody else do it.

Of course, I don't realize your experience either...

Question: If no forcing cone is better, why doesn't one of the major makers market such a barrel. It is certainly easier to make a barrel with a single dia. bore (ignoring choke). IMHO it's just more snake oil. If it's not, what is the explanation
for it's superiority? And lowered recoil ain't it unless you are considering that the increased gas leakage around the wad reduces muzzle velocity enough to make a difference.

RAN

You don't actually remove the forcing cone, but you knew that. Some folks refer to it as "removing the forcing cone". It is a misnomer. You only remove enough to reduce the angle making the transition from chamber to bore less abrupt which (a) reduces the tendency for the shot to spill and become deformed, which results in blown patterns, and (B), because the transition is smooth and less dramatic, less energy is needed to make the move, and we all know that less expended energy equals less recoil. Which is certainly not "snake oil". And, look at any modern trap gun, their forcing cones are what?

You really don't understand the concept at all, do you?

Malm summed it up pretty well.

As Malm tried to explain, "removing" isn't quite accurate. Nor is having "no forcing cone" very practical or efficient.

Instead of "removing", substitute the word "lengthening". You are reducing the angle or abruptness of the step down, making it a more gradual transition.



Do you also propose that a choke should be a sudden constriction, or do you see the benefit of a more gradual transition from bore diameter down to the choke constriction? And you can see that you don't get gas leakage around the wad before you get to the choke right?

Just move that whole concept back a couple feet and you have the forcing cone.

Isn't removing the forcing cone pretty much a back bored barrel.

No. A back bored barrel is one who's bore is reamed oversize.

I "smoothed" the forcing cones on a Winchester Model 23 sxs and found that its patterns were a bit better, at least by comparing 30" shot circles at 25 yards with the same shotshells. Felt recoil was about the same I guess, difficult to tell. For waterfowl with steel shot I think its a good thing to do.

A Beretta rep once told me that shooting 2 3/4" shells in a 3" chamber gives a similar result to lengthening the forcing cones.

Goes to show that gun reps don't always know what they are talking about.

"Freebore" ain't the same as a properly contoured forcing cone.

But when marketing to the uninformed masses, I guess the rep's line makes a good sound bite.