Trimmer opinion/help...

300WSM

Handloader
Dec 24, 2011
1,202
806
Need some opinions on a trimmer for the 30-378.

I have a manual trimmer and an electric brass smith trimmer from Lyman.

It works great. With repeated sense of pressure of course it's the same all the time every time. GREAT!

BUT...
It won't do straight wall cases and no bushing big enough for my 30 Kong.

I modified a bushing to take a 44 mag case and using some washers to index off the case rim it does ok.
While not a lot to hold on to of the case it does work overall better than hand cranking.

I tried to modify a bushing for the 30-378 and while I only needed to remove a little bit of material I'm not super confident the case mouth is getting cut square.
I will measure tomorrow and see just how square. I do practice turning the case 3,6,9, 12 o'clock while cutting to help with that. Not while cutting but in and out rotating it every few seconds.

That said I just don't feel solid about it with the big 30 cal.
Which brings me to Lee....

I've never owned anything from Lee. Having worked deep in the industry they just had a reputation of being cheap..possibly mickey mouse somewhat.

Perhaps that reputation wasn't warranted and by all means I pose no offense to anyone who likes Lee...

I just have no experience with them.

A friend of mine suggested a Lee case length gauge and shellhoder for the 30 kong.. and a cutter and lock stud.

He thinks they work alright but his alternative is hand crank only and he's not as picky as I am.
I have no idea how well it teally works. Don't even know without researching how it actually works.

I'd like some real opinions like y'all always give on topics.

The other trimmer is the WFT trimmer.
👇👇👇👇👇

I think with that one I need to purchase something in addition to that...

Anyways these appear as my only two options.

Definitely more than a penny for anyone's thoughts on this...

Thx and have a most glorious day! ! !
 
that's the only downfall is that it won't work on straightwalls. the trimmer does have a learning curve on pressure both forward and side to keep it square.
 
this is what I use . I run it with a cordless drill . I've done 222 rem to 338 Lapua , 41 rem mag , 45 acp



the trimmer you have pictured , I don't think you need anything else to go along with it . the problem I see with it is , it set the trim length off the shoulder of the case . I measure my chamber , and let my brass grow to chamber length , less .010 . I feel this helps control the carbon ring that builds up at the case mouth .
 
what diameter is the kong? the #24 is for 338lm in the brass smith case trimmer
That's the one I modified #24.

I bought it to size the WSSM ...

Anyways a properly sized 30-378 case is .561

That bushing is about .555 I.D.

So I drilled it out with a 9/16 drill.
(.5625)

Then I Dremel sanded it

The Kong isn't. 561 all the way back so I had to remove a litter more material. Dremel took care of that.
 
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I'm sure they're great but I'm trying to get away from cranking
I never liked the pilots making groove marks on the inside of the case necks either, nor cranking. I went with the Giraud and its fast and I can do a hundred cases in less than 15 minutes. A Sinlclair Wilson trimmer is nice where you do not need to use pilots.
 
I use some of the Lee trimmers, I chuck the base unit into a cordless drill held by a vise. Have to release the shell holder grip on the base about 1/2 turn for each case.
 
I use some of the Lee trimmers, I chuck the base unit into a cordless drill held by a vise. Have to release the shell holder grip on the base about 1/2 turn for each case.
"Have to release the shell holder grip on the base about 1/2 turn for each case."

Can you explain this a little more...

Understand I know nothing of the Lee trimmerthing.
 
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