Little Piggy

N's New Hair Cut

What do you think?

Baby Faces

3/4" Thick Steel Vs. .308 Win

I now have a 3/4" thick piece of steel ready for testing:




Do you think this will be able to stand up to a .308?



Those of you who are up to date on your physics and calculus can just do a little math and figure out what will happen.

Here is the data required for the calculation:

The steel plate in question is actually 3 pieces of 1/4" thick ASTM A36 welded together.
The mechanical properties of which are:
Yield Strength: 248 MPa
Tensile Strength: 400 MPa
Young's Modulus 200 GPa
Shear Modulus 70 GPa
Poisson's Ratio 0.26
Density 7861 kg/(m^3)

The bullet specs are:
Composition: Copper jacketed lead
Weight: 150 grains
Velocity @ 100 yards: 2533 fps
Energy @ 100 yards: 2137 ft-lbs

I posted all these numbers because I'm sure that Ben will be able to determine precisely what the outcome will be.

I could do the math too...if I wanted to...but I don't want to spoil the surprise.

What do you think will happen when I shoot it?
Will it:
-Bounce off leaving the plate unscathed.
-Make a dent but fail to penetrate.
-Punch right through.
-or something else?


...shooting stuff is fun.

Caffeine?

This is pretty bad...especially since I am currently caffeine free.
249 clicks in 30 seconds.

Sometimes I wonder things

Recently I found myself wondering "Will a .308 Winchester pierce 1/4" thick steel at 100 yards?".

I assumed that it would but I didn't know for certain what the outcome would be.

And since I prefer to know rather than assume I grabbed a box of rounds a rifle and a 1/4" thick steel plate.




Then I headed for the hills.

The steel plate was subjected to the following rounds:
.308 Winchester (our official test caliber)
.300 Win Mag
6mm
22 Mag
22 Long Rifle fired from a pistol.

All shots were taken from a range of 100 yards with the steel plate hanging from a tree branch.

Range was verified using a GPS which claimed to have +/-12ft accuracy that day. So lets say the actual range was 100 yards +/-24 feet.

The plate held up great....to the .22 cal rounds. No surprise.

The center fire rifles were a little tougher on the steel:


This is the entry side. Notice how the copper jacket has been stripped off:


And here is the Exit:


It didn't deform or flex the plate at all:


This shows how much expansion there was. The .308 brass can almost pass through the hole:


....now I find myself wondering something again. How much steel would it take to stop a .308 bullet at 100 yards?

Belly Time

Happy Birthday to K!

The weekend of K's 3rd Birthday was booked with things going on with church; so we celebrated a week late. She didn't mind, didn't even notice at this age. She wanted to have a Butterfly theme this year so that is what we did. I think it turned out great and she got some cool toys!

Here is the cake I made for her.

These are her gifts. Which ones do you think are from her Grandma's?

Here is a picture of the birthday girl with her friends.

This was her gift from her "Too Far Away Gramma".

This was the gift from her "Horsie Gramma".

Our Easter Dresses

L's Blessing Day