home made power case trimmer

[starpuss]

I am looking to make a power case trimmer
I am buying 500-1000 32-20 cases and need to cut them down to 8mm lebel revolver size.

I remember seeing some where that you can buy an ad on to use a drill press. Is this a good idea ?
Do you know where in Canada i can buy one?


What would be the Quickest way to do this.

32-20 brass $0.25 each
8mm lebel revolver $1.25-2.00 Each

so you can see why i want to do this.

 

[achtanelion]

If you're using a drill press, just use a block of wood with a hole the case fits into and a forstner bit. Set the table height so the cases are trimmed to the correct length at maximum ram travel.

Case goes into the block of wood, which is placed on the table.

Ram goes to maximum travel.

Case gets removed from block of wood.

Lather, rinse, repeat.

For extra credit, you could make multiple case holes in one block of wood and go to town.

J

 

[starpuss]

looks like a good idea. i never used a case trimmer before so ill do some research. what will stop the case from spinning in the wood?

 

[ahlsy]

Ballistics Products has a nice clamp system for roll crimping shotgun shells. Have a look at their website. I doubt theirs would fit but you might be able to find/build something similar. You can get similar clamps from Lee valley
ht tp://www.leevalley.com/en/wood/page.aspx?p=40056&cat=1,43838
All you would need is a body thats sized to fit the brass in question

 

[hoochie]

looks like a good idea. i never used a case trimmer before so ill do some research. what will stop the case from spinning in the wood?

stick a shell holder in a vise and hold the side of the shell with your finger so it doesnt spin? It would also keep the depth of the trim consistant, as its all metal on metal... not soft like wood.

 

[tiriaq]

Just use a standard hand crank trimmer connected to a battery operated drill or screwdriver.
Or adapt a Lee trimmer, and use it in a drill press.
I think the first option would be faster.

 

[Pete04]

I use a small pipe cutter to get them close to size and then just finish them off with a Lyman hand crank trimmer set to the proper depth. Clean up with a RCBS hand chamfering tool.

 

[PerversPépère]

There are trim file dies for this.
You can use a very fine toothed handsaw and cut the cases as they are held in the trim-file die then finish the job with a very fine file. Surface of the die is hardened and won't be marred by the file.
A touch with a deburring tool and your cases will be good to go.
PP.