The metal used in firearms

I have been working on a post concerning the different types of metals used in weapons manufacturing. The start was when we did the post concerning the different types of brass and bronze used to make different parts of older weapons. I still have not completed the write up and have an interview with a metallurgist in the near future. However one of the sites that I visit very often has a good write up concerning the metals used in firearms. If you have not been to you should go.

This are the three posts he has done and I found them very interesting.

Metals used in firearms -1

Metals used in firearms -2

And the latest installment is Metals used in firearms -3

Enjoy the site I do. Until tomorrow.

More Japanese 99 magazine update. 9-30

We have finished the second op die for the Japanese 99 magazine right side. The die is complete and the springs and pins added. This is a photo  run down of the final die. This is the complete die assembly

DSC_0163Another angle

DSC_0164_sThe bottom portion of the die

DSC_0165_sTop and bottom side by side

DSC_0166_sAssembled die from the bottom end

DSC_0215_sAssembled die from the feed lip view

DSC_0218_sChatting about the different components

DSC_0215_swPointing out the feed lip area.

DSC_0218_swWe are just drawing up the rest of the first stamping die then it is off to stamping.

Monday update 9-29

The 1″ steel plate that we cut up last weekend has been cut down to size and then sized in the HAAS to actual specs.

DSC_0145_sThis is all that is that is remaining of the steel sheet that we started with.


All of this material will be used on the fluting machine.This is what it looked like after its time in the HAAS and sized.


DSC_0176_sI also had a piece of rough ground stock that is the correct size for the chuck backing plate.

DSC_0177_sA quick look at the chuck backing plate solid modelchuck subplate 2

chuck subplate 1.


The major back piece which is 9″ wide and 48″ long is cut over size and set on the 3 axis cnc mill.

DSC_0171_sWe did a basic mark up on the plate to show where the initial bolt hole and reamed dowel pin holes are going. Then it was time to place the blocks under the plate and clamp it down. This first set up is just for drilling 6 holes.




The design has been changed to allow it to be held and located easier.

flutting machine final 3This is the new back plate design.

broaching machine backing plate revised 1

We moved the bolts that attach the fluting press to the side of the hydraulic forging press closer together then we will also machine 3 reamed holes in it as well. The reason for moving the bolt holes together is that corresponds with the table on the cnc mill. Now with this design I can machine the 6 holes and 3 reamer holes as a first op. then bolt the plate directly to the table of the mill and machine the sides and drill, ream and tape the rest of the holes without fear of movement.

Most of Sunday was spent doing honey do’s  The fixtures are in place in the hall bathroom and it is ready for use again. A few small things left to do, but that is for another weekend.

DSC_0213_sLast night a heavy rain storm came through the valley.


This is a quick video of the storm.

In it’s wake it left 1″ or so of rain. That brings the total to 6″ for the last month.

DSC_0208_swMy little rain gauge.

The project for the rest of Sunday is to build a new gun rack for my gun room. This is the solid model.

4 FT GUN RACKIt is 4 foot across and will hold 15 rifles. Here is where it is going in the room.

DSC_0214_sThis is as far as I got today. It is 5pm and time to relax a bit and I will finish it off next weekend.

DSC_0211_sThat is it for the weekend update. Until Tuesday.


Sunday answer September 28

This is the op rod for the MP-44. It is a combination of the gas piston and the bolt carrier. The bolt carrier provides the  cam surface for the bolt to lock and unlock the bolt from the trunnion.





What is it Saturday September 27



Video Friday 9-26

I don’t know how many of you have seen these videos but it is amazing what they can build with a basic shop.



Thursday Library AR-16

This post is about one the AR-16. To say that it is rare is an understatement. The only two known rifles are in the Reed Knight collections. Mr. Knight was nice enough to allow me to take some pictures of this interesting rifle.


A couple of close ups of the two different receivers.


IMG_0022_sThese are some of the original photos used for the catalog.




Here is a patent drawing.Stoner63-p1

And this last picture is of the solid model I started on the upper receiver.

Complete Upper Receiver1_s

Randon Info Wednesday 9-24

Today’s post is going to be a little short as I am just beat. We finished the rest of the Japanese type 99 stamping die that we have been working on. The next thing is to finish the first die and get it set up. That will not effect this die in the least. This die will be assembled this week with the springs and pies for correct alignment. So here are the pictures of the rest of the machined components.

These are pictures of the top plate base



DSC_0154_sThese are rest of the assembly of top and bottom plates



I will have the complete assembly finished by this weekend to shop you how it goes together. until next time.

Japanese 99 magazine update Shop Tuesday 9-23

We have completed some more work on the new stamping dies. We changed the design from a single stamp stamping set up to a multi step process. The first step is to stamp the ribs in the sheet metal then the following die set captures the sheet metal using the ribs as a reference and then bends the side walls.

This is the first set of dies. A little more still needs to be completed to work out the sheet metal stops.


IMG_2161cThe next set will start the bending of the sides. This is the series of parts required for this die. At this point the die is not complete. We still need to finish the upper and lower attachment plates.



the other side of the bending die.



As they look together.

DSC_0007_sThe back side of the die . The hole are for alignment and springs.


This series of pictures starts to show the die as it would be assembled.

DSC_0061_sThese are the end pieces of the stamping die to form the top and bottom of the magazine.


DSC_0063_sI hope you enjoyed the update. We are hoping to have this die completed this week. The material just came in on Friday. As always commits are appreciated.

Monday update 9-22

Well the fab shop new addition is now framed up and ready for a concrete pour. With any luck I will have the concrete completed in October.




This weekend is also honey-do weekend as well. The tile needed to put down in the hallway and bathroom  and the new lighting installed. This is by the end of Friday night.

DSC_0100_sThis is the progress by Saturday night.

DSC_0106_sAnd the progress in the bathroom.

DSC_0107_sThis is the end at Sunday night for the hall.

DSC_0149_sAnd the bathroom.



The hall lighting was installed as well.



The fun task is the solid works class that we put on for my friend from Texas. He is scheduled for a stop over here for a couple of days with his job, so it is time to learn and do a project. In this case we are working on the fluting press and a set of back grips for his semi 1919.

More work has been completed on the Japanese 99 magazine.

DSC_0007_sWe are also working in the fab shop. There is a lot to be completed in here to allow me to go forward with the projects. The first item completed is the band for the bracket to hold up the vent exhaust tube for the forge area.

DSC_0108_sAnd a close up.


After the clamp the supports were made.


The complete assembly up and in place.


Now with the tube installed.

DSC_0119_sOn to the next project. I have a section of 1″ steel plate that has a few supports welded on it. This will be cut up and machined for the necessary components needed for the fluting machine.

DSC_0110_sA little close up of the welded supports.

DSC_0111_sAfter all the supports are removed and ground the plate looks like this. A simple project that tool several hours and was way to much fun. This was accomplished with a cutting torch and a couple of grinders.

DSC_0129_sThen it was time to lay out for the necessary parts. This next phase of the project was completed by the world famous MacGuyver

DSC_0130_sA special welding guide was made up for a straight cut.

DSC_0132_sStarting the cutting operation.

DSC_0133_sAll the cutting was done on my home made cutting bench.

DSC_0139_sThe cut part way through.

DSC_0137_sA couple of looks at the completed cut slab.


DSC_0145_sFrom here it will be cut on the saw for the correct lengths and milled for proper size. That task will be completed this next week.

Here is a quick video of the torch cutting operation.

The rest of the honey do list was tackled. Last weekend we drilled hole in the frame of the walk in cooler and injected foam to act as a thermal barrier. I might have got a little carried away with the foam.


DSC_0035_sAfter a week of removing the excessive foam and sanding the frame we painted it again.

DSC_0146_sOnce we got started with painting we just finished everything that needed to be done.


Time to go back to the fab shop for some more fun. More work was completed on the hot forging press. The hydraulic manifold was welded on.

DSC_0124_sAnd the brackets for the piping were welded on as well.


Enough fun for the this weekend.