577 NE & 600 NE Case Trimmer

06 December 2019, 09:19

cal pappas

I use a file trim die for my .577 and .600.
Lyman trimmer with an electric drill up to .500.
It's a good thing my 12, 10, 8, 4 bores don't stretch as I don't have anything to trim that large of a diameter.
Of RCBS does not make the file trim die, maybe CH tool will.
If you can't get either (CH is on a 2+ year backorder) you can gently place the cases in a lathe (prefer a 4-jaw check) and trim with a shapr cutter bit. Takes time and is a pain, but it can be done. I would to this for my bore rifles but, as mentioned, I don't get any stretching.
Cal

_______________________________

Cal Pappas, Willow, Alaska
www.CalPappas.com
www.CalPappas.blogspot.com
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______________________________

06 December 2019, 17:57

jeffeosso

quote:
Originally posted by boom stick:
https://www.harborfreight.com/...t-off-saw-62136.html

Boomie saw my actual one, which works GREAT

yep .. make a L-shaped bracket for a tailstop - measure from the chopsaw blade to the max lengh you want, add .5, and put a screw in that to set depth . i have had amazing consistency in length, you just rotate the case and chop a couple times

another way, it have a friend with a lathe make some trim dies for you .. it's REALLY easy .. it's just 1"-14 thread, and there is two critical dimensions - the length and the diameter at the mouth, which should be about 0.001 smaller than fired cases. have him bore to that mouth diameter all the way through, then just bore till fits for the body.. you don't need a rim flange. then trim to length, thread it 1/14, and harden the top .. DO NOT TEMPER, only harden, and polish .. bang, press mounted trim dies... might take an hour of machine time, and a bit more for hardening ..

myself, i'd like make it from o1 steel, as it machines great and gets hard enough

06 December 2019, 19:03

boom stick

Don’t get more easy than this

quote:
Originally posted by jeffeosso:
quote:
Originally posted by boom stick:
https://www.harborfreight.com/...t-off-saw-62136.html

Boomie saw my actual one, which works GREAT

yep .. make a L-shaped bracket for a tailstop - measure from the chopsaw blade to the max lengh you want, add .5, and put a screw in that to set depth . i have had amazing consistency in length, you just rotate the case and chop a couple times

another way, it have a friend with a lathe make some trim dies for you .. it's REALLY easy .. it's just 1"-14 thread, and there is two critical dimensions - the length and the diameter at the mouth, which should be about 0.001 smaller than fired cases. have him bore to that mouth diameter all the way through, then just bore till fits for the body.. you don't need a rim flange. then trim to length, thread it 1/14, and harden the top .. DO NOT TEMPER, only harden, and polish .. bang, press mounted trim dies... might take an hour of machine time, and a bit more for hardening ..

myself, i'd like make it from o1 steel, as it machines great and gets hard enough

07 December 2019, 01:31

Brian Canada

Good to know, Thanks, brian

07 December 2019, 02:16

eagle27

I thought Cal had posted somewhere he uses tin snips for trimming his big boomers

07 December 2019, 05:56

cal pappas

quote:
Originally posted by eagle27:
I thought Cal had posted somewhere he uses tin snips for trimming his big boomers

If you can't call up said post, no one will believe you. LOL
C

07 December 2019, 18:39

nopride2

I trimmed .577 3" to 2 3/4" In a lathe.

Dave

07 December 2019, 20:33

dpcd

I was going to say use a lathe, but if you don't want to buy any tools, I can make a file trim die like Jeff described. Made lots of them.....

08 December 2019, 08:55

Saeed

Well, I use a Wilson case trimmer for these.

The cutter is custom made for me by a very kind and generous member of this forum.

Works like a charm.

For deburring I use a pipe inside and outside demurring tool.

Also sent to me by a friend from the States.

Non of the above gentlemen would accept payment for these priceless tools.