Author Topic: Hornady XTP nose shape?  (Read 480 times)

Rick R

  • Newbie
  • *
  • Posts: 63
    • View Profile
Hornady XTP nose shape?
« on: August 16, 2017, 06:27:05 AM »
When did Hornady go to the more round nose with a hole in the center shape for the 180gr XTP?
My old stuff collection contains a few hundred of the original XTPs with the jagged hollow point and skives,  a few of the later iteration where the jacket was rolled smoother and now the latest factory and component variant which is more round than truncated in profile.

These should feed but do they expand as well?
Hold my beer and watch this, Don't try this at home kids, Professional driver on a closed course...

The_Shadow

  • Moderator
  • Sharpshooter
  • *****
  • Posts: 7396
    • View Profile
Re: Hornady XTP nose shape?
« Reply #1 on: August 16, 2017, 06:44:58 AM »
Yes the XTP had under gone changes over the years.  My thoughts on the matter; The original 10mm design was Truncated Cone, then as time marched on and the 40S&W became popular, the nose profile became rounded, the HP cavity got smaller, this helped to move weight more forward, giving a thicker area as the bullet expanded, with the weight forward that allowed the bullet to be slightly shorter over all leaving more space for powder and possibly maintain better feeding.
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

Rick R

  • Newbie
  • *
  • Posts: 63
    • View Profile
Re: Hornady XTP nose shape?
« Reply #2 on: August 16, 2017, 11:24:43 AM »
I made it to the range today with a box of the current Hornady factory 180gr XTP and my handloads using once fired Starline brass and 7.8gr of BE-86 lit by S&B large pistol primers.

My Chrony says that both loads are @ 1,200 fps from my SR1911. Both loads group about 3" at 25 yards off the bench, same POA/POI. The older truncated style XTP would put 3-4 rounds of five under 1 1/2" at that distance about 3" lower than the new bullet using the same powder charge.  Flyers were my fault, the old XTPs would shoot!

I may be trying the 180gr Nosler to see if groups improve over the "improved" XTP.

Hold my beer and watch this, Don't try this at home kids, Professional driver on a closed course...

Texashogman

  • Jr. Member
  • **
  • Posts: 154
    • View Profile
Re: Hornady XTP nose shape?
« Reply #3 on: August 16, 2017, 12:21:18 PM »
be warned--not all xtp bullets are the same--- I found this out in .357" bullets--- there are HP, and FP versions --- the HP is designed to open more quickly and at slower speeds, the FP has a smaller cavity and is designed to have higher min/max opening speeds
in 40/10 there is only the HP version (right now)---BUT the 155 is designed to have a min opening speed of 850fps and a maximum of 1300 (any higher and it can "grenade" rather then mushroom)
the 180 is designed for 750-1450, and the 200 is designed for 700-1200fps
RIA 52000, PVL chest holster, Montana 200WFN

5 dollars waiting on 5 cents

Rick R

  • Newbie
  • *
  • Posts: 63
    • View Profile
Re: Hornady XTP nose shape?
« Reply #4 on: August 16, 2017, 01:13:01 PM »
I also chrono'd some 155gr XTPs today. One batch I loaded February 2000 with AA #7 and some I loaded this week with BE-86. Both batches are tickling 1,400 fps so I guess I can EDC a "grenade launcher".  :))

I actually had a batch loaded with the 155gr with a half grain less powder that I'm going to revisit next week as it grouped almost as well as the old 180gr XTPs did and I have a couple hundred of them, whereas I'm out of the second generation 180's.   The 155gr probably make a decent SD load but I don't think I'd deer hunt with them.
« Last Edit: August 16, 2017, 01:15:03 PM by Rick R »
Hold my beer and watch this, Don't try this at home kids, Professional driver on a closed course...

Rick R

  • Newbie
  • *
  • Posts: 63
    • View Profile
Re: Hornady XTP nose shape?
« Reply #5 on: August 16, 2017, 02:41:29 PM »
Since I'm new here and haven't tried attaching pix:

The left cartridge is an early XTP with the sharp edged jacket around a smaller hollow point.  Let's guess circa 1990-1995
The center cartridge is what I've come to expect from an XTP with the jacket rolled over smoothly into a larger hollow point opening.
The right cartridge is a new Hornady factory load from a LGS purchased this weekend and the components I purchased recently are the same bullet.
« Last Edit: August 16, 2017, 03:08:31 PM by Rick R »
Hold my beer and watch this, Don't try this at home kids, Professional driver on a closed course...

4949shooter

  • Contributing Member
  • Senior Member
  • ***
  • Posts: 2402
    • View Profile
Re: Hornady XTP nose shape?
« Reply #6 on: August 17, 2017, 03:15:51 PM »
Interesting. Thanks for the pic.

I was wondering what the differences in the bullets were.

The_Shadow

  • Moderator
  • Sharpshooter
  • *****
  • Posts: 7396
    • View Profile
Re: Hornady XTP nose shape?
« Reply #7 on: August 17, 2017, 05:43:55 PM »
Thanks Rick, for the picture, I should have some older Hornady bullets from back in the time period, but digging them out will have to wait for a while...I should have 170 grain XTP and 200 grain XTP in my stash from 1990 period and newer ones as well.
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna