Yet Another Brass Cutting Jig . . . . . (attempt)

[Two Flints]

Hello Mike Moore and Pvt Greg,

You have both inspired me to make my own brass cutting jig.  I purchased the Harbor Freight Chop Saw and decided to make my 50-70 Brass Cutting Jig out of hardwood.

First thing I did was to make a new base plate for the chop saw out of hardwood.  However, it's not thick enough, so it needs to be re-done and thicker.


In this photo you can see the early stages of my hardwood jig.  A 9/16" hole drilled all the way through the hardwood was quite a challenge to say the least


In this photo I have placed the hardwood jig inside the vise of the chop saw.  Again, I need to build up the hardwood base plate so everything will be level when making my brass cuts.



A closer look at the jig in the chop saw vise.  


What I need, now, are dimensions from someone who made the jig in the next photo.  I think I need the dimensions where each red line with a ? appears on the jig.


I'll add more information and photos to this thread as I finish this brass cutting jig.

Two Flints

[Perry Owens]

There you go Fred


Dimensions in inches. The most important dimension is the distance from the back of the block, where the case rim bears, to the saw blade slot. You could initially make it greater than the 1.15in I have and gradually reduce it by sanding the back of the block until you have the exact case length you need for your Spencers.
Mike

[Two Flints]

Perry,

Thanks so much for the post.  As always your support is much appreciated

Shouldn't the .60 + 0.49 = the bottom 1.15 on your jig?  

What is the length of your brass when it leaves the jig?

What is the length of your brass after it has been trimmed by your Forster Case Trimmer?  

And what is the "best" length for your Spencer?

I have some play when the brass is inserted in my 9/16" hole.  How do you keep the brass from spinning in the jig hole when making your cut?  Do you have to keep the brass from spinning?

Thanks Perry.

Two Flints

[Perry Owens]

0.60 + 0.49 should equal 1.15 but the vertical cut is not quite vertical.

Case cut length is 1.20in,

trimmed length is 1.15in.

Loaded length with a Buffalo Arms JIM bullet is 1.62in. These feed well through my 1865 Burnside Spencer.

The case is a snug fit in the jig and pressing my thumb against the base of the case is enough to prevent it spinning.

Perry Owens

[badlands]

I have a little (8inch between centers) unimat 3 metal lathe that i trim brass with it's really handy. Once you have the cutter set up right, you just have to chuck up the brass and tail stock it and cut it i've cut a hundred at a time and it's really quick. I have an inside radius cutter too that's real handy with it.  Check them out on ebay they have them most of the time.  Unimat 3.

[Dakota Widowmaker]

Why the brass cutting jig? Is 56-50 brass from Starline all dried up again?

I picked up another 200pcs from Track of the wolf about 2 years back and haven't bothered to see how supplies are these days.

I loaded up 3 boxes of 42 rds (6x7rds) and 4 boxes of 25rds (5x5rds)  in period correct cardboard stuff which is sitting in wait for the day I need it. The rest of the ammo is in loose 50cal ammo boxes.