lead weight per inch in x dia ?

[mike in co]

i need to put aprox 24 oz of lead in a butt stock...maybe only 16 oz....but in that ball park.
i was gonna do a simple wood mold with a straight drilled hole( 1in pine screwed to 1 in pine,hole down the middle)
i do have a lathe but as this is just a one time thing was thinking simple wood
so at one inch dia how long/deep is 8 oz ?....12 oz ??
( will do two short pcs to keep the weight at the rear.)

[oneokie]

Pure lead weighs 0.411 lbs per cubic inch.

2.4 cubic inches of pure lead weighs 1 lb.

[Mk42gunner]

It has been a long time since I figured the volume of a cylinder; but that times the specific gravity of lead should tell you how many inches you will need.

Robert

[mike in co]

thanks guys ..i can do the math from here...

[mike in co]

so with your help, i determined i needed aprox 1.5 long with a 1" dia.
bored a flat base blind hole in a pc of alum, heated it up a bit, poured from a 10lb lee dripmaster.
when cooled machined away the base and two sides and popped out the slug.....8 ounces!
in the end 8oz keep me in the 13.5 class
thanks

[theperfessor]

Good job! That science and math stuff comes in handy sometimes doesn't it. LOL

[Lance Boyle]

Good job! That science and math stuff comes in handy sometimes doesn't it. LOL

yep, every once in a while I use that trigger nometry stuff too. Like mathematically calculating how much to move a front sight. Funny it works pretty close too.

[theperfessor]

I think a lot of folks could learn math easier if they were shown how to use it to solve various problems. I always did better in engineering classes than I did in abstract math classes, because engineering classes show how to use and apply the principles of math. When I took calculus the author of the textbook we were using had written a similar book that covered both the theory and the application of calculus. I bought that book and was able to fight my way through calculus with a passing (not outstanding, but passing) grade. I later got rid of the textbook but I kept the theory and application text, still have it on my bookshelf.

I'm seeing more of a trend now in many schools to teach both the theory and application of math integrated into the same course, instead of teaching the theory of math in a math class and the application of math in physics and technology classes. It's amazing how useful math can be if you know how to apply it!