Case trimming

[Yorkshire Viking]

After some advice might sound daft but if you don’t ask you don’t know.

When trimming cases to length - is it best to do before or after bumping the shoulders back. I’m currently full length sizing if that makes any difference?

Thanks in advance guys.

 

[webley701]

Cases change length during sizing so measure & trim (if required) after FL sizing (which includes ‘bumping shoulders back’).

 

[Pedro]

I always do it after full length resizing. Kinda makes sense that way, to me at least. Or, to be accurate, I'll measure after resizing and trim those that need it.

 

[Yorkshire Viking]

Cases change length during sizing so measure & trim (if required) after FL sizing (which includes ‘bumping shoulders back’).

That makes sense thanks for that bud.

 

[Yorkshire Viking]

I always do it after full length resizing. Kinda makes sense that way, to me at least. Or, to be accurate, I'll measure after resizing and trim those that need it.

Thanks that’s the way I’ll do it in future thanks again bud.

 

[Pedro]

Incidentally, at the danger of hijacking this thread, I use a Lee zip trimmer thingie to do mine. Which works okay. But I was thinking what else is there that would work easier, without spending a fortune.

 

[Greenmist]

Incidentally, at the danger of hijacking this thread, I use a Lee zip trimmer thingie to do mine. Which works okay. But I was thinking what else is there that would work easier, without spending a fortune.

I've started using the lee trim dies with deluxe cutter, so far I like it, I also liked the simplicity of the case length gauge, the rcbs trimmer I have rarely gets used

 

[Yorkshire Viking]

Incidentally, at the danger of hijacking this thread, I use a Lee zip trimmer thingie to do mine. Which works okay. But I was thinking what else is there that would work easier, without spending a fortune.

I have a Lyman one - seems a bit faffy setting it up. Seems bang on now but would long fancy swapping calibres all the time.

 

[trickie]

I moved onto to these:

UGLY SRT TRIMMER – Derraco Engineering, the maker of Ugly annealers

One for each calibre, very well machined, also very easy to adjust (feller gauges required) There is a UK distributor.

 

[MarinePMI]

Incidentally, at the danger of hijacking this thread, I use a Lee zip trimmer thingie to do mine. Which works okay. But I was thinking what else is there that would work easier, without spending a fortune.

Easier and inexpensive are going to be at odds with each other.

There are caliber specific ones that aren't too expensive (WFT for example) that will work for those that only have one or two type of cartridges to trim. At the other end of the spectrum, you can spend $600-$1000 for truly "easy" and "fast" (Giraud & Henderson come to mind), but those are geared more for doing hundreds or thousands of cases in one sitting.

 

[User00056]

I only trim every two or three reloads to be honest (if I remember), and even then it doesn't take off much metal with my .270 reloads. I use the Lee trim dies and quick trim. Very quick, consistent, and gives an internal and external chamfer

 

[Fowler1990]

I moved onto to these:

UGLY SRT TRIMMER – Derraco Engineering, the maker of Ugly annealers

One for each calibre, very well machined, also very easy to adjust (feller gauges required) There is a UK distributor.

Yeah these are the mutts, you can buy one and additional collets for various calibers if you don't want multiple. Far more consistent than the Lee stuff

 

[RJ156]

Awesome bit of kit the SRT trimmer. Super quick to change collet too