You are Unregistered, please register to use all of the features of!    

Firearm & Gun Forum - > Gear & Accessories > Ammunition & Reloading >

Hand gun reloading question

LinkBack Thread Tools Display Modes
Old 01-20-2013, 05:45 PM   #1
Feedback Score: 0 reviews
CourtJester's Avatar
Join Date: Jul 2010
Location: West Central Indiana
Posts: 3,310
Liked 1441 Times on 704 Posts
Likes Given: 63

Default Hand gun reloading question

I've just started loading 9mm and .45. I'm using Accurate #7 powder with winchester magnum pistol primers. They fire okay but leave behind what looks like unignited powder.
What and I screwing up here or is this normal?



I hope I shall possess firmness and virtue enough to maintain what I consider the most enviable of all titles, the character of an honest man.
~George Washington
CourtJester is offline  
Reply With Quote

Join Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join Today! - Click Here

Old 01-20-2013, 05:50 PM   #2
Feedback Score: 0 reviews
potentialglock's Avatar
Join Date: Aug 2012
Posts: 1,160
Liked 160 Times on 113 Posts


Why are you using magnum primers? That's your first problem. Neither caliber is a magnum caliber so basically you have the wrong primer. Don't quote me on this cause I might be wrong. But magnum primers burn slower, hotter and in some cases send burning shrapnel into the powder to help ignite it. Some of that residue could be from the primer. Switch to small pistol primer for 9mm and large pistol for 45. But no magnum. Not enough powder in either cartridge to need it
potentialglock is offline  
Reply With Quote
Old 01-20-2013, 06:54 PM   #3
Feedback Score: 0 reviews
Overkill0084's Avatar
Join Date: Sep 2010
Location: Weber County, Utah
Posts: 4,910
Liked 3468 Times on 1747 Posts
Likes Given: 513


First, I have not used AA#7 ( I Like AA#5 though)
But if it's like some other powders (2400 comes to mind), it sometimes takes a fair bit of pressure to eliminate unburned powder. It doesn't help that .45 acp is fairly mild mannered as far as pressure is concerned. Unless it gets crazy it's nothing to worry about. You could warm things up some and it may help.
Why are you using magnum primers? That's your first problem. Neither caliber is a magnum caliber so basically you have the wrong primer.
These days, Magnum LP primers may be all that's available. While they are a bit of overkill, there really isn't much in the way of danger as long as typical cautions are observed, e.g. work up your new load accordingly. I believe that I read somewhere once that Mag Primers are about the equivalent of an additional tenth of a grain of powder (Rule of thumb/Wild Assed Guess kind of thing). Don't know if it's entirely correct, but it sounds somewhat plausible. Whatever the case, it's certainly enough to be accounted for.
MSgt, USAF, Retired
NRA Life Member

The hardest thing to explain is the glaringly evident which everybody had decided not to see. - Ayn Rand

Last edited by Overkill0084; 01-20-2013 at 07:40 PM.
Overkill0084 is offline  
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
New here...reloading question modernmopar Ammunition & Reloading 19 01-21-2013 12:30 AM
Newbie Question = How should a hand grip a gun? BearArms2 Semi-Auto Handguns 10 01-04-2012 09:31 PM
338 win magnum hand reloading Tommygunarms Ammunition & Reloading 1 10-16-2011 02:03 PM
Question about a low priced hand gun mudslinger79 General Handgun Discussion 22 03-28-2010 11:51 PM
Hand Gun Question Regarding new buyer opaque General Handgun Discussion 20 10-14-2009 04:14 AM