Bullet Seat Stem
For SWC and FWC Bullets
Bullet Seat Stem
Dillon "New Dynamic" Seat Die (shown with OEM seat stem)
Click to enlarge image(s)
If you Reload .45 cal. or .38 cal. swaged or cast SWC (Semi Wad Cutter) bullets, and use a Dillon Pistol Seating Die, this is the seat stem for you!

This custom bullet seat stem contacts SWC bullets at the shoulder, yielding consistent alignment and seating of SWC bullet profiles. Fits the Dillon Pistol Bullet Seat Die and simply replaces the original seat stem. Installation takes just seconds. Can also be used to seat FWC (Full Wad Cutter) bullets.*

Precision CNC machined from 303 Stainless for years of use. An extra deep counterbore handles most any bullet. So you can reload the 185gr or 200 gr lead cast or swaged bullet without having to adjust your seating die.

Available Calibers:
.45 cal. - (T1561-45)
.40 cal. - (T1561-40)
.38 cal. - (T1561-38) [Also works for 9mm]

† This insert works only in the Dillon Pistol Seat Dies with removable die insert and reversible seating stem. It Does not work in Square Deal 'B' seat dies.
* This bullet seat stem will seat both SWC and FWC bullets equally well with the same end. It is not reversible.
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Customer Reviews

Average rating from 3 reviews: 5.0
it’s an Amazing Toolit’s an amazing tool, a significant improvement over the old style seating die. I use it in a Dillon die on the RCBS single stage press I bought in 1976 or 1977. The only modification I did was to replace the Dillon lock ring with a Hornady lock ring. Because the Hornady lock ring locks in place on the die, the die is always in exactly the right place and adjustment every time.

Out of 100 rounds I’d say 90 drop freely into a Wilson case gauge. Of the other 10, 9 will have some bullet lube on the outside of the case. Once that’s cleaned they too drop freely into the Wilson case gauge. Of that last one - the stubborn one, a little extra taper crimp gets that job done. I’ve not had an FTE or FTC stoppage in any of my 1911s with any of the ammo loaded with your shoulder seating plug.
Written by C. Metcalf on Fri 27 Mar 2020 5:51:37 PM GMT
SKU T1561Installed one on 550 & 1050 both 45 acp, best thing out there homemade or otherwise.
Lee, for a great product
Written by Jess Lopez on Tue 15 Oct 2019 7:48:06 PM GMT
Best seater for wad-cutters or semi wad-cutters...I put this (45 cal seater) in my Dillon 45ACP and Dillon 45LC dies, and put those dies on my Dillon 450’s. Works outstanding. No bullet deformation, shaving, or marking. Works great on plain lead, powder coated, and also Hi-Tek coated bullets. I love shooting wad-cutter bullets. Thanks UniqueTek. Written by Jared on Thu 26 Oct 2017 1:15:17 PM GMT
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