32 ga ???

[B. Dudley]

The 32g is basically the euro equivalent to the 410 bore.

[C.O.B.]

I thought the 32 was much closer to a 28 than the 410. One reason they never became very popular.

[Double Lab]

I think Rich is correct for if my memory serves me correctly the .410 bore is equal to a 67 gauge.

[Bill Murphy]

Now you have to hunt for a gun to shoot those shells in.

[C.O.B.]

There is a 32ga hammer gun for sale on Guns International.

[J. A. EARLY]

Originally Posted by Daryl Corona

I think Rich is correct for if my memory serves me correctly the .410 bore is equal to a 67 gauge.

Correct.

1 Pound / gauge = weight of lead sphere Caliber of lead sphere is then measured
gauge pounds mm inches
0.25 4 67.34 2.651
0.5 2 53.45 2.103
0.75 1 1/3 46.70 1.838
1 1 42.42 1.669
1.5 2/3 37.05 1.459
2 1/2 33.67 1.326
3 1/3 29.41 1.158
4 1/4 26.72 1.052
5 1/5 24.80 0.976
6 1/6 23.35 0.919
6.278 1/6.278 23.00 0.906
7 1/7 22.18 0.873
8 1/8 21.21 0.835
9 1/9 20.39 0.803
10 1/10 19.69 0.775
11 1/11 19.07 0.751
12 1/12 18.53 0.729
13 1/13 18.04 0.710
14 1/14 17.60 0.693
15 1/15 17.21 0.677
16 1/16 16.83 0.663
17 1/17 16.50 0.650
18 1/18 16.19 0.637
20 1/20 15.63 0.615
22 1/22 15.13 0.596
24 1/24 14.70 0.579
26 1/26 14.31 0.564
28 1/28 13.97 0.550
32 1/32 13.36 0.526
36 1/36 12.85 0.506
40 1/40 12.40 0.488
67.62 1/67.62 10.41 0.410

[edgarspencer]

Jerry, do you know why the cartridge manufacturers referred to the .410 as 36ga? (a sample as shown in Dave's post)

[J. A. EARLY]

Originally Posted by edgarspencer

Jerry, do you know why the cartridge manufacturers referred to the .410 as 36ga? (a sample as shown in Dave's post)

Edgar,

This is only an educated guess but the base diameter of the cartridge/shell is 11.9 mm/.490, so they opted to call it in addition to a .410 a 12mm which is close to a 36 gauge (but should have at least called it a 40 gauge), ignoring that the bore size was actually 67 gauge. I guess 36 gauge sounded sexier than a 67 gauge and would result in more sales.

Type Shotgun, revolver, single-shot pistol
Place of origin England
Production history
Manufacturer Eley Brothers
Produced 1874 onwards
Specifications
Case type Rimmed, straight, (optional plastic)
Bullet diameter .410 in (10.4 mm) (slug)
Neck diameter .455 in (11.6 mm) (plastic)
Base diameter .470 in (11.9 mm)
Rim diameter .535 in (13.6 mm)
Rim thickness .060 in (1.5 mm)
Overall length 2″, 2 1/2″, 3″
Primer type Shotshell primer
Maximum pressure ) 18,130 psi

[C.O.B.]

I thought the 410 was considered more as a caliber than a gauge.

[edgarspencer]

Dave, I'd sure like to find a cupboard full of those Peters Squirrels.