Cylmer finish reamer 2 1/2" to 2 3/4"

[Walz]

The shotgun is a model 1900, hand fitted, custom finish, coach gun.

What I have:
Clymer 16 gauge 2 3/4" reamer (finish).


What I've done:
I purchased this on eBay for my; 16 gauge, 2 1/2" shotgun shell, on my 1900 SXS hammerless shotgun to lengthen the shell to modern 2 3/4" shotgun shell.


What I need to find out is if the finish reamer incorporate the force cone also?.
I'm going to use bird shot, light load, it will be a wicked shotgun with full chokes.

 

[Walz]

Here is a link to my question, with more information and photos.
https://sites.google.com/site/lengtheningtheshotgunchamber/


Thanks for any information, input.

 

[Clemson]

I prefer to buy 2 1/2 inch shells (available from RST) rather than modifying a 100+ year old gun.

 

[Walz]

The firearm is not a 100 year old gun that is an antique to be a safe queen.
To purchase 2 1/2" shells would cost a lot of money just for shipping in this part of the world.

First:
The antique value went out the door when someone cut the barrels down many decades ago. I found this hanging in a garage, the stock and forearm were broken, all of the screws were butchered, the hammers were frozen, the barrels were loose, but it's a 16 gauge that had potential to become a great firearm again.
Second:

What this shotgun has evolved into; is a coach gun, with an expensive professional finish, the firearm has been meticulously built into a modern firearm that kicks a**.

This is a much better quality than most of the shotguns made today, heavy duty steel that is rock solid, Remington has outsourced their SXS shotguns for awhile, Winchester has plastic parts in their shotguns and the quality .

The 2 3/4" reamer is finished adjusting the barrels, I will hone out the barrels next. Can anyone give me some helpful advice on the force cone issue?

 

[Walz]

After:






Before:

 

[Walz]

Before:








After:

 

[Walz]

 

[FROGO207]

I have not used one of those for a shotgun. Looking in the Clymer web site they have a catalogue in pdf form. The info says that the finish reamer for a shotgun cuts the entire chamber including the throat and rim recess. They also show a separate forcing cone reamer. I would assume that it is also needed.

What I DON'T know is if reaming a chamber 1/4 inch longer it would be necessary to re ream the forcing cone or not and if it would affecting accuracy.

 

[Walz]

I have not used one of those for a shotgun. Looking in the Clymer web site they have a catalogue in pdf form. The info says that the finish reamer for a shotgun cuts the entire chamber including the throat and rim recess. They also show a separate forcing cone reamer. I would assume that it is also needed.

What I DON'T know is if reaming a chamber 1/4 inch longer it would be necessary to re ream the forcing cone or not and if it would affecting accuracy.

Thanks for your input,

 

[Kp321]

I lengthen chambers with a long forcing cone reamer, kill two birds with one stone.

 

[Walz]

I lengthen chambers with a long forcing cone reamer, kill two birds with one stone.

So, does the Cylmer reamer do the same thing? That is what I need to know.

 

[FROGO207]

Looking at your reamer and the picture in the Clymer PDF they look different. You might have purchased a long forcing cone reamer as it does not have the steps the chamber reamer shows in the PDF. The best way to get answers is to call them when they are open next week. Do come back and educate us when you find out.

 

[Walz]

Looking at your reamer and the picture in the Clymer PDF they look different. You might have purchased a long forcing cone reamer as it does not have the steps the chamber reamer shows in the PDF. The best way to get answers is to call them when they are open next week. Do come back and educate us when you find out.

Thanks for all of your help.

 

[4v50 Gary]

Do get back to us.

 

[BBBBill]

1. Contact the reamer manufacturers to ask specifically whether their reamers cut the forcing cone at the same time.
2. Vintage of the reamer might make a difference. Ask whether they have changed their specs and give them the info off your reamer.
3. Not all barrels are thick enough to accept reaming for the longer shells. Measure the barrel wall thickness to confirm to prevent a nasty surprise.

US manufacturers were late to the parade with longer forcing cones. The Europeans beat us to it by a long time. I'm told by those that know more than me that the modern plastic wad made longer forcing cones an issue. Some folks want longer than the now standard long forcing cones for a variety of reasons.
Reamers and other tooling can be rented from 4D Reamer Rentals - https://4drentals.com/ I don't see a wall thickness gauge listed, but it's worth a call. Of course there's always Ebay and Brownells.