The Firing Line Forums

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

Reply
 
Thread Tools
Old October 21, 2001, 06:55 PM   #1
Swamp Yankee
Senior Member
 
Join Date: November 26, 2000
Location: Northeastern Ct.
Posts: 1,013
9mm +P Loads

Looking for data on 9mm +p loads. Checked Speer, Lyman, and Hodgon with no luck. Anybody got a source?
Want to load 124 and 147 gr FMJ.
As always thanks in advance for the responses.
Take Care
Swamp Yankee is offline  
Old October 21, 2001, 09:42 PM   #2
labgrade
Member In Memoriam
 
Join Date: November 29, 1999
Location: west of a small town, CO
Posts: 4,346
Actually, anything in any manual over the max listed is +p

+p is nothing more than "over pressure" sorta & really has nothing to do with added velocity. I've seen some published +p data that was well short of "standard" velocities.
labgrade is offline  
Old October 21, 2001, 11:21 PM   #3
C.R.Sam
Senior Member
 
Join Date: October 29, 1999
Location: Dewey, AZ
Posts: 12,859
+P indicates peak pressure of up to ten percent over SAAMI spec for that cartridge.

As Labgrade says....no direct indication of projectile performance. Browse through some loading data and note that often a lower pressure load will outperform a high pressure load......difference being the powder used.

Sam
C.R.Sam is offline  
Old October 22, 2001, 05:53 AM   #4
WESHOOT2
Senior Member
 
Join Date: February 20, 1999
Location: home on the range; Vermont (Caspian country)
Posts: 14,139
They call me "MAJOR NINE"...............

AA5, Power Pistol, WAP, 3N37........

Chrono required.
__________________
.
"all my ammo is mostly retired factory ammo"
WESHOOT2 is offline  
Old October 22, 2001, 06:04 PM   #5
Swamp Yankee
Senior Member
 
Join Date: November 26, 2000
Location: Northeastern Ct.
Posts: 1,013
Need to rephrase and regroup.
Loads not for handgun.
The ammo is to be used in a Special Weapons SW-5 carbine. It loves the factory 9mm +P and +P+. Standard 9mm cycles the action but its sluggish with the occasional jam.
I want to duplicate the +P loadings, upping the pressure to get better performance from the action. That factory ammo is expensive. Was hoping to find a starting point or some leads as to where to read up.
Worked up to 6.4 grains PowerPistol with 124 grain FMJ. (Speer Max Load), No ruptured cases or flattened primers. Been maintaining a COL 1.125 +.005/-.003. Using Lee Factory Crimp die. The carbine's action cycles but still somewhat sluggish.
Thanks for the help, appreciate any input.
Take Care
Swamp Yankee is offline  
Old October 22, 2001, 06:26 PM   #6
JohnK
Senior Member
 
Join Date: May 12, 2001
Location: Duvall, Wa
Posts: 552
Swamp Yankee every gun is a law unto itself for what it will handle, especially when you get up into the +P beyond published data territory.

Your best bet will be to use a chronograph and work up to whatever load you're looking for using that particular carbine. If it were me I would start with the hottest standard pressure data I could find and go from there.
__________________
John

http://www.handloads.com
Molan Labe!
JohnK is offline  
Reply

Thread Tools

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 06:32 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.07158 seconds with 7 queries