How much weight would I save on this barrel?

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28 October 2007, 00:09

Snowwolfe

How much weight would I save on this barrel?

Barrel on this rifle (375 Wby) is 26 inches long and it measures .710 at the muzzle. The rifle is a little heavier than I like and I am thinking about cutting the barrel back to 23 and then having it gradually turned down starting about 3 inches in front of the chamber finishing to .670 at the muzzle.
How much weight do you think the barrel would lose?

28 October 2007, 00:36

Cheechako

snow

There is a formula where you can input the different dimensions of a barrel and it will tell you what the weight is, or will be. Unfortunately i don't know what the formula is. I'm posting this in the hope that maybe somebody else can direct you to it.

Also, you might look at the web sites of the custom barrel makers, especially Dan Lilja, and see if maybe they have it there.

Good Luck

Ray

28 October 2007, 00:47

z1r

Very rough guess, about three ounces.

28 October 2007, 00:55

yeti

Go with z1r's estimate....

1 cubic inch of steel weighs .283 pounds.

You gotta do sum pie are squares and minusing (Pie ain't square! Pie is round, cornbread are square!) and multiply by the weight of steel. (Do all your measurements in inches. European barrels can't be lightened 'cause of the metric system

)

[(Old OD - New OD) x Length] x .283 lbs/CU = Jenny Craig results for a perfect cylinder.

Your barrel is not a cylinder, but more like a truncated cone. Here's the formula for the volume of a truncated cone

28 October 2007, 01:05

z1r

quote:
Originally posted by yeti:
Go with z1r's estimate....

1 cubic inch of steel weighs .283 pounds.

You gotta do sum pie are squares and minusing (Pie ain't square! Pie is round, cornbread are square!) and multiply by the weight of steel. (Do all your measurements in inches. European barrels can't be lightened 'cause of the metric system )

[(Old OD - New OD) x Length] x .283 lbs/CU = Jenny Craig results for a perfect cylinder.

Your barrel is not a cylinder, but more like a truncated cone. Here's the formula for the volume of a truncated cone

28 October 2007, 13:34

Dan H

Have you looked at fluting? The pac-nor site has a weight calculator that might be helpful.

I'm thinking of rebarreling my Sako AV 375 with a longer but fluted barrel....I'd like a bit more velocity than the 19" tube can safely give.

How do you like the 375 Weatherby?

Cheers,

Dan