lead ring reamer

[moptop]

My father and I came up with a simple little tool to remove the excess lead ring that forms above the end of the brass when seating & crimping a bullet. The one shown is for 9mm. We took a cartridge and ran it through the crimping die so the opening is just slightly larger than the bullet ogive at the base. We mounted it on a piece of dowel and sharpened it using an inside & outside deburing tool. It's just sharp enough, with one twist, to cut the ring or shoulder without damaging the bullet.
No more porblems with rounds not going into chamer all the way.

Just thought I'd share.

[MT Gianni]

Good idea, Moptop. IME you get a lead ring on a cartridge because of insufficient belling.

[454PB]

Yes, good simple tool for those that need it, but there are ways to avoid the problem to start with.

[44mag1]

I get this when I load cast in 10mm I usualy seat then crimp to avoid it, if the bullet is still being seated as the crimp finishes how do you avoid it without an extra step?

[jack19512]

IME you get a lead ring on a cartridge because of insufficient belling.








That's what I was thinking also. At least that is the only time I have got the lead ring.

[Lloyd Smale]

like was said if you bell properly and crimp in a seperate operation you will eliminate the problem alltogether.

[cajun shooter]

Don't know what dies you are using but the belling of the case mouth in most dies is only for the bullets with the jackets. Thats why RCBS came out with the Cowboy dies for CAS as they only shoot the lead. Most companies will send you the correct mouth belling tool at no or little cost. I also find that seating and crimping in two stages works better. The tool you came up with is neat though.

[Willbird]

Dad always told me if your shaving lead the results will not be accuracy.

[MT Gianni]

Dad always told me if your shaving lead the results will not be accuracy.

Daad was right.

[35remington]

Yep, fix the belling problem and seat the bullet correctly and you won't need the gizmo. Accuracy will be better too.

Don't taper crimp while the bullet is still being shoved in the case by the seating stem. So doing plows up a ring of lead forward of the case mouth (even if belled properly), especially if you're using an excessive taper crimp like so many seem to want to do.

[deltaenterprizes]

Bullets with a crimping groove,as is the case for most semiautomatics, should be TAPER CRIMPED, in a seperate step.

[Chargar]

Agreed... That is a tool, for which there is no real need. If you are shaving lead when seating your bullets, you are doing it wrong and accuracy will suffer.

[sundog]

Yeppers, a solution for a problem what should not exist. Pretty ingenious idea though.

[R.C. Hatter]

In my judgment, cutting away the "lead ring" is only a cosmetic attempt to conceal a much deeper fault in your loading procedure. Elimination of the fault is a much better course of action, which will give better accuracy and overall satisfaction. The "lead ring" is caused by insufficient belling of the case mouth, and/or crimping while seating bullets, especially when using a taper-crimp die. This is corrected by first seating the bullet in a sufficiently belled case, then crimping as a separate step.