WFT scratching brass

[Reformedcitykid]

I’m having an issue where my WFT trimmer is leaving a scratch ring around the brass just above where it sits inside of the collet. I’ve buffed the inside with my Dremel and can’t see or feel any burrs. Has anyone had this issue? Any idea what may be causing it? Thanks in advance!View attachment 8493309

 

[joshb]

Are you trimming them before resizing or after? Have you oiled the bearing lately?
Picture no worky.

 

[Reformedcitykid]

Trimming after resizing. I thought maybe brass is getting stuck due to sizing lube but it’s the same spot on each case and there’s no brass shavings I can see.

I haven’t lubed it, what do you generally recommend? Hoppe’s #9, 3-in-1, something else?

I’ve tried attaching the pic again here

 

[Keith Hansley in NC]

try using a bit of sizing wax in that area and see if that works. the mar is just a rub mark, will buff out with steelwool

 

[Straightshooter1]

I’m having an issue where my WFT trimmer is leaving a scratch ring around the brass just above where it sits inside of the collet. I’ve buffed the inside with my Dremel and can’t see or feel any burrs. Has anyone had this issue? Any idea what may be causing it? Thanks in advance!View attachment 8493309

Three things I think you might need to do:
- Make sure you've got a real good polish on the inside of that trimmer.
- Make sure there's little to no vibration as the trimmer spins
- Have cleaner brass

I had the same kind of issue with my Giraud Tri-Way. For me it was about reducing the spinning vibration by adjusting the shaft around in the drill's chuck until spun almost perfectly in balance. I put a reference mark on the shaft and drill chuck so I will always mount the trimmer in the same spot. I still get a slight burnishing mark, but it's ever so slight and of no concern.

 

[Just Say Moe]

Doesn't the WFT have a bearing where the case goes that prevents the case from spinning?

 

[divingin]

Doesn't the WFT have a bearing where the case goes that prevents the case from spinning?

Haven't used mine in a long time, but that was what I recall as well. The inner guide hits the shoulder, and should allow the outer housing and cutter to spin, while the guide remains generally static against the cartridge case.

I'd suspect a bearing lube problem, or perhaps some metal chips in the bearings - something causing the inner guide thing to spin against the case.

 

[joshb]

I use 3 in 1. I’m trying a new product called Dry Lube, because the oil will pick up dust and stuff. We’ll see.