410, but in a gauge

[TSchwab25]

Hey there people of THR, what gauge would a 410 actually be if it was measured in "gauges"?

 

[Jeff62]

67.5

 

[Jeff62]

I don’t know the origin but 410 sounds way cooler than 67.5

 

[Armored farmer]

.410 BORE
.....you knew that.

 

[RedlegRick]

I thought it was called 36 gauge in some places.

 

[mcb]

I thought it was called 36 gauge in some places.

It has been, especially in Europe, though I have never seen a good explanation of how or why.

 

[MEHavey]

"Gauge" = Balls/lb
.410 ball weighs 103.4gr
7000gr/lb ÷ 103.4 gr/ball = 67.7 balls/lb = 68 "gauge"

 

[TSchwab25]

.410 BORE
.....you knew that.

Yes but i was wondering what it would be in a gauge

 

[BigBlue 94]

I thought it was called 36 gauge in some places.

As noted, Europe likes that designation for the 12-20-28-36 progression. If one buys Magtech brass .410 cases, the box is labeled as 36ga. Magtech is in Brazil.

 

[Jim Watson]

"Gauge" = Balls/lb
.410 ball weighs 103.4gr
7000gr/lb ÷ 103.4 gr/ball = 67.7 balls/lb = 68 "gauge"

Mathematically correct.
But the present Skeet load is 1/2 oz, so it is ballistically a 32 ga.

 

[George P]

Don't forget about the 24 gauge

 

[Jim Watson]

From when black powder and card/felt wads ruled. They aren't as flexible as progressive smokeless powder and plastic shotcups, so a substantial change in loads meant a different gauge to balance velocity and pattern.

 

[Carl N. Brown]

May be OT. During the current ammo drought, the only ammo on the shelves consistently has been the 28 gauge.

 

[George P]

Yep and when Academy had them the Fed Top Gun was $1 higher than the Winchester AAHS

 

[MEHavey]

"Gauge" = Balls/lb
.410 ball weighs 103.4gr
7000gr/lb ÷ 103.4 gr/ball = 67.7 balls/lb = 68 "gauge"

Mathematically correct.
But the present Skeet load is 1/2 oz, so it is ballistically a 32 ga.

I say again... "Gauge" = Balls/lb
a "12" gauge barrel is ~0.73" diameter (think also Brown Bess)
a 0.73" lead round ball weighs ~586gr
7,000 gr/lb ÷ 586 gr/ball = "12" gauge

 

[Riomouse911]

That may be the reason for the old “16 gauge, 1 Oz load is the perfect combo” comments I’ve seen from days past.

Dont know if any of that is true, but I love the 16 and it’s fun to talk about.

This wiki page has a neat chart for calculating gauge, pounds, bore diameter in mm and in inches ranging from a 4-pounder (2.65”) down to the .410 bore. It’s a wiki, so take it with a grain of salt.

Stay safe.

 

[BigBlue 94]

Don't forget about the 24 gauge

Certainly not. Nor 16 or 32, or the Soviet Cosmonaut 40ga. Though ive never seen a 24 or 32ga in real life. Or obviously the 40.

 

[George P]

two 24s:
https://www.gunsinternational.com/guns-for-sale-online/shotguns/shotguns-24-gauge.c1836_p1_o6.cfm

 

[George P]

Gordy and Sons 32:
https://www.shotgunlife.com/gordy-and-sons-rizzini-quail-gun.html

 

[Phaedrus/69]

Fascinating! I didn't realize I wanted to know that til just now; now that I do it's cool.

 

[ApacheCoTodd]

So, Dr Science, what gauge is my .22 Stevens?

Todd.

 

[adcoch1]

So, Dr Science, what gauge is my .22 Stevens?

Todd.

Probably right around 200 GA?

 

[kudu]

With there being 15.43 grains in a .22 round ball that would make it 453.66... So 454 gauge rounding up.

 

[ApacheCoTodd]

With there being 15.43 grains in a .22 round ball that would make it 453.66... So 454 gauge rounding up.

Now THAT, is a cool gauge!

"Yup, gonna take the ol' 454 out and blast some snakes & stuff this afternoon!"

Todd.

 

[ExtremeSquared]

Volume of sphere: 4/3 * pi * r^3 = 4/24 * pi * d^3 = 1/6 * pi * d^3
Density of lead: 11.34 g / cm^3
0.410" in cm: 1.0414 or so
1lb in g: 453.6g

453.6 * 6
_________________ = 67.64 gauge

pi * 1.0414cm^3 * 11.34


or simplified further...

76394.4
__________ = gauge

(bore in mm)³