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Giraud Tool Company, Inc.

 

 

GIRAUD POWERED CASE TRIMMER 

Page 7 of 10 

thread.  If you are looking at the 
cutting end of the shaft, turning the 
head counter clockwise while 
holding the shaft will loosen the 
head for removal.  Turning the 
head clockwise will tighten the 
head for installation.  As the unit 
operates, the cutting forces act to 
tighten the cutting head to the 
trimmer shaft.  It will not spin off in 
normal use, so there is no need to 
apply dramatic torque to the 
cutting head during replacement.  
Do not over tighten when 
installing, a snug fit is all that is 
necessary.  Over tightening will 

only make the unit more difficult to remove later and provides no additional 
stability to the operation.   
 

Meplat Trimming Feature 

 
The ability to clean up the meplat surface of match hollow point projectiles can 
result in better accuracy at long range.  Because of this, several manufactures 

offer device to trim or uniform the 
meplat surface of bullets.  The Giraud 
Powered Case Trimmer is among 
them.  To trim projectile meplats, 
additional parts are needed and 
described below.   
 
A cutting head with a carbide end mill 
replaces the case trimming cutter head 
using the interchangeable head feature.  
Only one meplat cutting head is 
required to trim meplats of any caliber 
projectiles.  It is installed using the 
same spanner wrenches and process 
described above for case trimmer 
cutting head changing.   See Fig. 8. 
 
A projectile holder is required for each 
specific caliber diameter projectile to be 
meplat trimmed, i.e. .22 caliber, 6mm 
caliber, etc.  This projectile holder is 
constructed of the same basic parts as 
a cartridge case holder and is installed 
in the trimmer in the same way as a 
cartridge case holder, loosen the jam 
nut, remove the previous holder, install 

 

 
Figure 7 - 

Case holder, interchangeable cutting head and 

spanner wrenches shown loosening tightening the cutting head.

 

 
 
 
 
 
 
 

 

 
Figure 8 - 

Meplat cutter head with carbide end mill.

 

 

 

Figure 9 - 

Meplat projectile holder with projectile 

inserted.

 

 

Summary of Contents for POWERED CASE TRIMMER

Page 1: ...or uniform trimming and chamfering of rifle cartridges outside of a military type arsenal The trimmer comes complete and ready to use set up in one caliber Presently there are over 175 different available sizes A list is shown on the last page of this Instruction manual Additionally if you have a chamber reamer for other wildcat sizes they can be accommodated by finishing a blank case holder with ...

Page 2: ...ids around the trimmer that could cause problems with the electric motor or switch See Fig 1 below Each trimmer is sent with a sample case attached to the sheet metal in a small ziplock style bag with the caliber noted This case was the last case trimmed with that specific trimmer before being packaged for shipment There are also two spanner wrenches enclosed in the white foam packing material on ...

Page 3: ... case is touching the rotating blade As the case rotates and blade rotates the entire case mouth makes contact with the entire travel of the blade It sounds more complicated than it really is Just give them a twist and they come out pretty uniform Next check your overall length of the trimmed case with a caliper I will set the length fairly close but it will really depend on how you size your bras...

Page 4: ...ngle case holder The outer body of the case holder threads into the trimmer body and is adjusted to control overall length of the trimmed case The inner sleeve of the case holder is contoured with a chambering reamer of the appropriate caliber to hold the case A light compression spring is held captive between the two parts and forces the inner sleeve away from the cutter until pressure is applied...

Page 5: ... care to protect your eyes and exposed flesh from any flying debris Those little shards of brass can get everywhere Adjusting the Trimmer and Changing Calibers To change the trimmer from one caliber to another say 223 to 308 the case holder must be changed and the trimmer blade must be adjusted The case holder is pretty straightforward to change Loosen the jam nut on the front or top face of the u...

Page 6: ...edge with no burr on the outside of the case mouth As a tip leaving the jam nut loose you can wiggle the case and case holder assembly a few thousandths to make fine adjustments to the blade position without knocking the blade way out when trying to make the last fine movement Once the case chamfers are set measure a few cases and determine if the case length needs final adjustment as well Remembe...

Page 7: ...er device to trim or uniform the meplat surface of bullets The Giraud Powered Case Trimmer is among them To trim projectile meplats additional parts are needed and described below A cutting head with a carbide end mill replaces the case trimming cutter head using the interchangeable head feature Only one meplat cutting head is required to trim meplats of any caliber projectiles It is installed usi...

Page 8: ...on brand motor have a slot at the 3 clock in the shield covering the body of the motor for a lubrication point Once in a while put a few drops of light motor oil or 3 in 1 type oil in there to lubricate the bearings on the motor and keep you trimmer working smoothly Don t flood them every time you use the trimmer but just a couple of drops every one or two thousand cases For me that s about every ...

Page 9: ...der to your brass Contact GTC for further details if interested Problems or Questions Good luck with your trimmer and shoot all Xs If you have any problems with this trimmer or questions about operation call me or drop me an email and I will be glad to help you Together we will make your trimmer right and make sure you are using it in the most beneficial way possible My email address is doug girau...

Page 10: ...erby 22 250 Winchester 284 Shehane 340 Weatherby 22 250 Winchester Ackley Improved 7mm 08 35 Remington 240 Tomahawk 7mm BR 358 Winchester 240 Weatherby 7mm Boo Boo 35 Whelen 243 Winchester 7mm Creedmoor 9 3x62 243 Winchester Ackley Improved 7mm LRM 375 H H 243 Winchester Super Short Magnum 7mm Raptor 375 Chey Tac 6mm AR 7mm Remington Magnum 375 Raptor 6mm BR 7mm RSAUM 375 Ruger 6mm BRX 7mm RUM 375...

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