The Firing Line Forums

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

Thread Tools
Old February 6, 2012, 12:02 PM   #1
Senior Member
Join Date: July 25, 2009
Posts: 114
Shot Some Magnum Primers In A Non Magum Load

i know it's been debated back and forth, but went ahead and tried it out.

i talked to a 30 years reloader who initially got me into reloading. he told me with the lighter loads i was shooting i shouldn't have any problems.

i shot about 100 rounds of 38 special out of my s&w 642

148 Grain DEWC over 3.0 grains of hp-38

the only thing different i noticed was a lot of ash/flaking falling out of the brass.
810wmb is offline  
Old February 6, 2012, 12:39 PM   #2
Old Grump
Member in memoriam
Join Date: April 9, 2009
Location: Blue River Wisconsin, in
Posts: 3,144
If you had chrono'd the rounds you may have noticed a larger variation in velocity too but for all practical purposes it doesn't really hurt anything, it just isn't as efficient. To me a magnum primer is only for igniting powder that a standard primer may have difficulty igniting completely, ie ball powder or cold temperatures. I could be wrong, often am but that is what comes off the top of my old dinosaur head.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.
--Daniel Webster--
Old Grump is offline  
Old February 6, 2012, 12:50 PM   #3
Senior Member
Join Date: February 12, 2009
Location: Butte, MT
Posts: 1,611
It all comes down to the powder as Old Grump has alluded to.... Has NOTHING to do with the cartridge or load. Ie, you DON'T just use a magnum primer because you are loading Magnum loads. It all comes down to the powder you are using. For example, IMR-4227 and H-110/Win 296 require Magnum primers. Unique, W-231, Green Dot do not. Does it hurt? Depends on the powder. For Unique, I've tested WLP, CCI-300, and CCI-350. Slightly different velocities but no biggie... it is primer insensitive. 2400 on the other hand, you get a 100+ fps difference between magnum and regular primer. Using Trail Boss loads, it depends, with one bullet type, my Extreme Spread get cut in half with a magnum primer. Another load, it works better with regular primer -- go figure. A chronograph is 'invaluable' here.

I haven't ran a back to back test with w-231 yet (at least I don't recall it), so can't say anything about it... yet.
A clinger. When guns are outlawed, only outlaws will have guns. Single Action .45 Colt (Sometimes improperly referred to by its alias as the .45 'Long' Colt or .45LC). Don't leave home without it. Ok.... the .44Spec is growing on me ... but the .45 Colt is still king.

Last edited by rclark; February 6, 2012 at 01:05 PM.
rclark is online now  
Old February 6, 2012, 01:38 PM   #4
Senior Member
Join Date: July 25, 2009
Posts: 114
For Unique, I've tested WLP, CCI-300, and CCI-350. Slightly different velocities but no biggie... it is primer insensitive.

this is the information i have been looking for!

i have about 4? lbs of unique i can use when shooting up the rest of these - they are cci's

810wmb is offline  

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 01:34 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:
Contact Us
Page generated in 0.06522 seconds with 7 queries