Barrels cut?

[edgarspencer]

Originally Posted by Drew Hause

. The length of the choke constriction of a 16 or 20g should be 1 1/2" - 2" with a short parallel section at the muzzle; longer if a 12g.

The attacched photo shows J.P.Hayes' personal choke reaming tools, the 16ga., 20ga.,and 28ga. attached to their rods. The taper sections of each of these reamers is approximately 3 1/2" long. The more open choke the machinist desired meant the barrels, attached to the lathe carriage, were moved further inward. The greater diameter of the choke, which is obviously the inside, is largest dimension of the reamer.

Originally Posted by Drew Hause

From the late Austin Hogan
Parker chokes prior to sometime during Remington's ownership were cut with the adjustable nut borer and had the characteristic "OGEE" shape, with a parallel section 1/8 to 1/4 inch long. Late Remington barrels were reamed from the muzzle end, and have longer parallel sections.

I'm at a loss to understand how Remington performed the choke reaming operation from the muzzle end, unless the reamer, inserted into the breach end, was drawn inward from the muzzle end. It would not be possible to insert the tool from the muzzle end.

[Drew Hause]

Discussion regarding choke length
http://www.doublegunshop.com/forums/...257#Post466257

[edgarspencer]

In England, Teague determined that a straight tapered choke, whose minor dimension was at the muzzle, gave a better, more consistent pattern than chokes which terminated in any parallel wall ending at the muzzle. This coincided with Bert Becker's observation.

Early Remington guns were know to have tapers which began at the barrel midpoint.

I find it hard to believe that choke restrictions as little as a few thousandths of an inch, had a tapered section anywhere near approaching 1 1/2"

I put one of J Hayes 16ga. reamers between centers and any 2.5" section of the reamer, measure from either end, tapers .035" ( .0175" per side) This reamer has a date stamped on it of 1901.

In order for any reamer to have a terminating section with parallel surfaces, it would require a vast number of reamers for the variety of chokes offered, so I have to conclude, that if there is a parallel wall section from the muzzle, going back some amount, it had to have been done with a separate tool. None of the dozen Hayes reamers in my possession have any parallel cutting surfaces. These reamers came from Charlie Parker.

Draw your own conclusion. I am confident in my measurements of this reamer.