case trimming question

[Von Gruff]

What is everyone using to trim thier cases. I have the RCBS trimmer that I got in the 70's and the russian cases cant be held in either of the two collets. Dosent appear as if RCBS makes a collet to hold this case so what has everybody else used to trim to length.

Von Gruff.

[Drifter]

I get good results using the WFT (World' Finest Trimmer):

http://www.littlecrowgunworks.com/wft.html

If you can stomach the price, the Giraud is often considered among the very best:

http://www.giraudtool.com/prod02.htm

[mseric]

What is everyone using to trim thier cases. I have the RCBS trimmer that I got in the 70's and the russian cases cant be held in either of the two collets. Dosent appear as if RCBS makes a collet to hold this case so what has everybody else used to trim to length.

Von Gruff.

Collet #3

http://www.midwayusa.com/product/604518/rcbs-case-trimmer-collet-3

[capt greg]

[QUOTE=Drifter;34055]I get good results using the WFT (World' Finest Trimmer):

This looks like it would work great.. So these are caliber specific?, no adjusting, An all you gotta do is chuck in a drill an trim away?...

no more cramping hand n forearm from turning a dang trimmer..

I see several of these in my future..

[BjornF16]

i use the Possum Hollow Kwik Case Trimmer

https://www.possumhollowproducts.com/KWICK_CASE_TRIMMERS.html

[Drifter]

I get good results using the WFT (World' Finest Trimmer):

http://www.littlecrowgunworks.com/wft.html

This looks like it would work great.. So these are caliber specific?, no adjusting, An all you gotta do is chuck in a drill an trim away?...

no more cramping hand n forearm from turning a dang trimmer..

I see several of these in my future..

They are cartridge specific. Set to trim length during initial use, then no adjustments needed again.

The WFT and Possum Hollow are similar in concept. I've used both, and consider the higher price of the WFT to be justified. It's simply better quality and seems to be a better fit on the cartridge case. Either will do the job.

[Von Gruff]

Collet #3

http://www.midwayusa.com/product/604...immer-collet-3

Well color me blind because I could not find a reference where I looked. ( my wife says that all the time)
In the meantime I have ordered a Lee lock stud and shell holder and believe I can get the lock stud to fit in one of the collets I have or it will be a simple matter to turn down the lock stud dia to suit. With the lock stud and shell holder in the trimmer collet it will be a simple matter to set the trimmer to the trim length I need. Have an 18 volt lithium battery drill formotive power.

Von Gruff.

[ChellieWiles]

I just began using the Wilson stainless micro trimmer a couple weeks ago and it works perfect. Very smart design. link to brownells

http://www.brownells.com/.aspx/pid=39291/Product/Wilson-Stainless-Micrometer-Trimmer-with-Stand

[rasp65]

Von The thing I found with my Grendel chamber is that the length of it is 1.540". You plan on running the reamer in .05" deeper so your case necks may never get long enough for the case neck to come close to the face of the chamber. If you add the extra depth your chamber length could be 1.590". What you are planning is a good idea but I think you need a custom reamer made or some modifications to the reamer you have.

[LR1955]

Von The thing I found with my Grendel chamber is that the length of it is 1.540". You plan on running the reamer in .05" deeper so your case necks may never get long enough for the case neck to come close to the face of the chamber. If you add the extra depth your chamber length could be 1.590". What you are planning is a good idea but I think you need a custom reamer made or some modifications to the reamer you have.

Thank you Mr. Rasp.

Now perhaps folks understand when I say that in most cases, the Lapua Grendel brass will wear out before trimming is a absolute necessity.

LR1955

[rasp65]

Vom I have a 6.5x55 Ackley Improved it is merely a 6.5x55 with less taper and a 40 degree shoulder. In it the chamber length is 2.172, the 6.5x55 cases started at 2.165" when they get blown out they become 2.135". The Ackley chamber grips the case so well that there is very little if any stretch in the case. So I will always have about a .03" gap in front of the case mouth and ideally I would like about a .005" gap in this rifle. Like LR1955 I haven't found the Grendel necks to need trimming.

[Von Gruff]

Von The thing I found with my Grendel chamber is that the length of it is 1.540". You plan on running the reamer in .05" deeper so your case necks may never get long enough for the case neck to come close to the face of the chamber. If you add the extra depth your chamber length could be 1.590". What you are planning is a good idea but I think you need a custom reamer made or some modifications to the reamer you have.

I will in effect have a custom chamber as the GS will cut it to suit the cases I have made up. My reasoning goes like this. I have the 7.62 x 39 of my friends to play with and some of his reformed cases go over 1.560 in length. admitadly only a few in his box but the box of Winchester brass I have varies from 1.514 through to 1.523 and becasuse I can get the chamber mouth cut to the length I want so need to be able to trim the brass if necessary. I have finalised my case dimensions and loaded dummy rounds etc but it is going to be 6-8 weeks till the barrel gets here but my place in the work que has been noted.I will get the chamber mouth cut to 1.535 for a trim to length of 1.525. I will get a .293 neck and minimum body expansion.
I got a box of grendel loaded ammo and de bulleted it in a hornady press mounted collet puller), saving the individual powder charges in egg cups ( had to do this in two runs as I only had 10 eggcups) Then I expanded the necks with a 7mm expander and necked back down in my Forster FLS grendel die with the .5 spacer on the shell holder (plus a .006 shim to give a crush fit in the chamber for fireforming) and re loaded the powder and seated the A Max back in my Wilson seating die for an OAL of 2.400. Makes a really good looking cartridge and will give me about as much as the case is capable of with the ability to use slightly modified factory ammo if the need be.

Von Gruff.

[rasp65]

Vom It looks like you have your bases covered. I was going to suggest using the false shoulder method for your cases but you said something about hydro forming. I see a lot of guys that shoot the 6mm Dasher use the same method on 6 PPC cases. I would suggest not uniforming you length until after you fireform your cases as you will see a reduction in the length.

[Von Gruff]

I only hydroformed a case or two so the GS had a go guage case length, the rest have the false shoulder with .006 crush fit. None of the brass I have is longer than 1.523 so triming is not necessary for now, with just a VLD chamfer needed at present...but it may become necessary to trim at some stage so I wanted to have the necessary on hand when the time comes. I check cases every loading for my other rifles and this will be no different. Only do the case work that is necessary but DO the case work that is necessary.In my shed today starting the inlet of the action into the stock as it has had three days for the glue to gain maximum strength.

Von Gruff.