Barrel Thickness Comparison:

[Bruce P Bruner]

It was very obvious when viewing the pair of 1901 shotguns side by side, one has much thicker barrels at the breech. In the photo on the left is a 1901 Lefever I, on the right is a 1901 Parker Brothers V, both have 12 Gauge steel barrels.
The Lefever measures .185
The Parker measures .221
Interesting comparison. I'd bet Charlie has an 8 Gauge nearing .500!

[Brian Dudley]

Lefevers had varying barrel weights. A 12g can be very light and thin, or very heavy. Even heavier than that Parker.

[John Davis]

3 frame 12 vs. 2 frame 12

[Dean Romig]

Barrel breech wall thickness is mostly determined by the standardized frame size. And the gun’s weight and consequent frame size is determined by how the gun was ordered/specified.





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[Dave Noreen]

Parker Bros. built 12-gauge guns pretty regularly on 1, 1 1/2, 2 and 3 frames, a few late Remington built guns on the 1/2 frame and even at least one on a 6-frame that Jack P. had for sale years ago --

97780

97781

[Bruce P Bruner]

Wow! That one is a monster.

[Garry L Gordon]

Dave, you should be declared a National Treasure!

[Craig Larter]

Parker 6 frame 8ga's have some thick barrels at the breech but my Lefever 8ga has them beat, Lefever on the left

[Drew Hause]

Bunch o' slackers ;)
Ithaca had a DOUBLE THICK Nitro Breech!

1902

https://photos.smugmug.com/Damascus/Ithaca/i-q9gVV25/0/88dc8317/L/1902Ithaca-L.jpg (https://drewhause.smugmug.com/Damascus/Ithaca/i-q9gVV25/A)

1903

https://photos.smugmug.com/Damascus/Ithaca/i-G7gcvr8/0/2d839ca8/L/1903Ithaca-L.jpg (https://drewhause.smugmug.com/Damascus/Ithaca/i-G7gcvr8/A)

[charlie cleveland]

the 100 dollar barrels appear to be rifled are they.....charlie

[Dave Noreen]

The artist's interpretation of reflections in the highly polished chamber.

[Bill Murphy]

Have we seen an Ithaca with the double thick breech?

[Dave Noreen]

When you find one, Bill, take a picture of it and post it here.

[jefferyconnor]

Which name model Ithaca is that with a square crossbolt? Brown patent rotary bolt guns have a square hole in the rib extension yet this isn’t that because the NID came out way after this. Is this a square version of the Greener round crossbolt?

[Dave Noreen]

It is the Lewis Model (1901 to 1906), just a hook off the top-lever that engages the square hole in the rib extension.

[Milton C Starr]

I've measured my 6 frame 10 gauge numerous times at the breech but can't remember what it was . I want to say .29" but can't be sure .I'll have to check it when I'm back home .