Author Topic: Underwood 140gr Lehigh Defense Xtreme Penetrator Pull-Down  (Read 4795 times)

The_Shadow

  • Moderator
  • Sharpshooter
  • *****
  • Posts: 7389
    • View Profile
Re: Underwood 140gr Lehigh Defense Xtreme Penetrator Pull-Down
« Reply #15 on: March 13, 2017, 06:12:50 PM »
That's getting close t matching the data shown... ;D 8)
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

PCFlorida

  • Contributing Member
  • Full Member
  • ***
  • Posts: 625
    • View Profile
Re: Underwood 140gr Lehigh Defense Xtreme Penetrator Pull-Down
« Reply #16 on: March 13, 2017, 06:56:13 PM »
Nice job! I appreciate it.
NRA Life Member

Grendel

  • Newbie
  • *
  • Posts: 6
    • View Profile
Re: Underwood 140gr Lehigh Defense Xtreme Penetrator Pull-Down
« Reply #17 on: March 13, 2017, 08:35:37 PM »
Thx ;D

FWIIW, a picture. Case head expansion is .0020" (no reference data yet, sorry. Keep in mind it was fired in a SIG. YMMV)

Edit: forgot -- the crud around the primer is sealer. Ammo is destined to be lugged around in the woods...
« Last Edit: March 14, 2017, 10:36:25 PM by Grendel »

crockett

  • Newbie
  • *
  • Posts: 15
    • View Profile
Re: Underwood 140gr Lehigh Defense Xtreme Penetrator Pull-Down
« Reply #18 on: April 04, 2017, 04:59:12 PM »
Very nice.

I got some personal stuff done and should be back for uploads soon. Still trying to get the right powder.

4949shooter

  • Contributing Member
  • Senior Member
  • ***
  • Posts: 2402
    • View Profile
Re: Underwood 140gr Lehigh Defense Xtreme Penetrator Pull-Down
« Reply #19 on: April 08, 2017, 03:25:47 AM »
This ammo cycles fine through my Glock 20.

Has anyone put the new load over a chrono?