Flat seat punch

[a.squibload]

Probably should be in "reloading tools" but relates to swaged boolits:

Bought some sizing punches from theperfessor, got rid of the ring on the
44 WFN boolits. Made me think about making a flat seat punch for swaged boolits.
https://lh4.googleusercontent.com/-tZr9xO3-ZHY/Tp5fdEyN7HI/AAAAAAAAAS8/lVGWma-kLO4/s640/DSCF0028.JPG

Used to have inconsistent boolit lengths, and inconsistent COLs.
Modified my jacket case trimming procedure, now they are all exactly the same ([smilie=1:),
but the seat punch doesn't really fit them. Tried the JB Weld but it erodes pretty quick,
bringing back the inconsistent seat depth/COL.
It was a pain getting the JBW out of the seat punch!

So I made some tiny ingots by casting a few drops of lead in the seat punch cup.
When they cooled I glued one in the cup with silicone rubber, filed the ingot flat,
but the brass ate it up pretty quick.
Turned down a washer to .398 (for 40 cal seat die), and glued it on the ingot.
Works fine, seat depth is much more consistent now, and the rubber will be easy
to get out if I want to change it.

https://lh4.googleusercontent.com/-CONAjna4TB0/Tp5fdSco0RI/AAAAAAAAATA/6s9XZ98ePeI/s640/DSCF0032.JPG

https://lh3.googleusercontent.com/-9V4g2VqlXmU/Tp5fcoai9XI/AAAAAAAAAS0/bGpJGYW-SK0/s640/DSCF0037.JPG

Figure some day I'll get another seat punch and turn it down flat (per suggestion
from theperfessor) now that I know a flat punch fixed my problem.

[Wally]

With that seater screw--if you can get it into a drill to spin it, you can carefully spin it and use a lap and or sandpaper to "open it up" to fit the bullet contour. I had a similiar problem with of all things a 429421. Seems the nose on the bullet was a bit oversized. I chucked the seater screw into a drill and used sand paper to "open it up". I'd do it awhile and then check my progress with a cast bullet, so that i didn't "open it up" too much. It was not all that difficult to do.

[a.squibload]

Yeah, that's how I got the JBW out of it, whittled by hand with a screwdriver,
then used a brass brush and drill press to clean it up.
Hadn't thought of making the cup wider, that's probably all it needs.
Leaves a ring sometimes. I think I'll quit rounding the nose on these,
just another step, and only shortens the bullet a few thou.
Besides I like the look of the BTBMHP (BT's Big Mouth HollowPoint).

Seems like "Gaping Maw HP" didnt' catch on!

"Turbine Intake HP"?

OK, I'll stop.