The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Thread Tools Search this Thread
Old July 22, 2012, 10:19 PM   #1
Junior member
Join Date: May 16, 2009
Location: Central Texas
Posts: 1,343
Seating XTPs

When seating XTPs on a Rockchucker press do you guys have better luck with the flat seating plug or the concave. Am loading 357 Sigs not that I think it would matter much if it were 357 Sigs or 357 or 40s. But just talking to someone who asked which should make more accurate lengths and not close the hollow points at all. Using RCBS Dies.

Last edited by farmerboy; July 22, 2012 at 10:56 PM.
farmerboy is offline  
Old July 23, 2012, 10:31 AM   #2
Senior Member
Join Date: November 19, 2002
Location: Mississippi
Posts: 963
I can see where the flat seater could effect runout. But, we are also dealing with Pistol rounds.
I have always used concave seater.
TATER is offline  
Old July 23, 2012, 10:31 AM   #3
Senior Member
Join Date: November 6, 2001
Posts: 1,028
I use the concave cupped seating punch with XTP pistol bullets for 9MM, 357 Mag, 44 mag, 45 ACP, and 40 SW. Works fine for me. I think the flat seater punch wouldn't do well on the irregular shapes of the hollowpoint bullets. I've read that you can order special punches for XTP bullets at RCBS and I don't know if others offer this service or not. I've polished the edges of some seating punches to prevent the edge from marking the bullets. I used very fine sandpaper and a bullet I'm using behind the paper to help make the punch match the contour of the bullet nose.
rg1 is offline  
Old July 23, 2012, 07:56 PM   #4
Join Date: January 25, 2011
Posts: 46
I have noticed some of my 9mm XTP hollow points closing up some with the concave plug. I am thinking of getting a flat plug or modifying one to see how it works.

I don't know if it affects accuracy but if it was a self-defence round I suspect it wouldn't be as effective with a smaller diameter at the point.
peter_s is offline  
Old July 23, 2012, 08:20 PM   #5
Senior Member
Join Date: November 9, 2005
Location: Ohio, Appalachia's foothills.
Posts: 3,779

Sent from HenseMod6.
mrawesome22 is offline  
Old July 23, 2012, 10:13 PM   #6
Senior Member
Join Date: December 10, 2005
Location: Central , OR
Posts: 1,829
I use the flat seating plug for XTP hp/fp. If I feel too much resistance in the seating and crimp stage I will do it separately.
joneb is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 02:55 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2017 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.11905 seconds with 9 queries