Coned Muzzles

[Flintlock Whiskey]

View attachment 361739
So here's your average garage sale hose nozzle.
The slope on the sides calculate out as 3.076 degrees to make a total cone angle of a little over six degrees. If the rifling grooves are 20/1000ths deep then to grind them out to the point of disappearing at the muzzle will leave a depth of grinding (axially down the bore) of about 3/8". If it went 50/1000ths instead of 20/1000ths then the depth would be less than an inch. Dang if I can't see why it wouldn't work.

Any idea who made this?

 

[nkbj]

Nkbj, the only issue I see, is how to keep it centered in the bore.
Joe Woods tools have a fitted jag specific to caliber.

That existing flange on the outlet end is .53" diameter. I reckon for use on smaller diameters it would probably be easiest to replace it with a threaded hole for jags.

 

[nkbj]

Any idea who made this?

It's stamped with "China".

 

[Eras Gone]

My buddy has a 11 degree coning tool that is designed for .45 revolver forcing cones. Would it work on a muzzleloading rifle?

 

[Flintlock Whiskey]

It's stamped with "China".

Unfortunately, that applies to 85%+/- of everything.

 

[OldNo7]

My buddy has a 11 degree coning tool that is designed for .45 revolver forcing cones. Would it work on a muzzleloading rifle?

~ No way ~

I've used that same tool for just what it's made for ("unmentionables" as owned by "deplorables") -- but I think it's much too aggressive an angle for what this post is about. It cuts and removes chips of steel at a much faster rate than the polishing as one does with the Joe Woods tool.

The image below shows how that forcing cone tool cut and cleaned up some rough machining marks on my Ruger Old Army's forcing cone -- but imagine the amount of metal removed if you went in 1/2" or more into the bore.

Old No7