primer question - The Firearms Forum

scotdj2 · 05-12-2009, 07:23 PM

I have a question about relaoding 9mm & 40cal loads with winchester magnum small pistol primers. Can I use the same powder charge as I use when I use standard winchester primers.

Freebore · 05-12-2009, 11:42 PM

Check out the thread on page 2 (5/8/09), there's a lot of feedback on this same subject

gdmoody · 05-13-2009, 09:09 AM

Freebore is right, read the thread, but a short answer - yes.

JLA · 05-13-2009, 01:46 PM

I would back off a tad... The difference between magnum and standard primers is that magnums are a little hotter so they will reliably ignite heavy charges of slow burning rifle and pistol powders. I dont think you would blow your gun up even if you used max charges with magnum primers using standard primer loading data but the pressure curve may just be high enough to increase the wear and tear on your brass and your firearms beyond an acceptable level. I personally use magnums in everything, however I rarely load max charges. In fact the only thing I even come close to max in is my .30 carbine loads...

05-12-2009, 07:23 PM	#1
scotdj2 Member Join Date: May 2009 Posts: 4	primer question I have a question about relaoding 9mm & 40cal loads with winchester magnum small pistol primers. Can I use the same powder charge as I use when I use standard winchester primers. -->

05-12-2009, 11:42 PM	#2
Freebore V.I.P. Member Join Date: Apr 2009 Location: Midwest USA Posts: 265	Re: primer question Check out the thread on page 2 (5/8/09), there's a lot of feedback on this same subject

05-13-2009, 09:09 AM	#3
gdmoody Advanced Senior Member Join Date: Sep 2007 Location: Northeast Georgia Contributor Posts: 6,334	Re: primer question Freebore is right, read the thread, but a short answer - yes. __________________ NRA Endowment Member GeorgiaCarry.Org Member Retired US Army Postal Worker Personally, I carry a gun because I'm too young to die and too old to take an ass whoopin'.....author unknown (but obviously brilliant)

05-13-2009, 01:46 PM	#4
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,317	Re: primer question I would back off a tad... The difference between magnum and standard primers is that magnums are a little hotter so they will reliably ignite heavy charges of slow burning rifle and pistol powders. I dont think you would blow your gun up even if you used max charges with magnum primers using standard primer loading data but the pressure curve may just be high enough to increase the wear and tear on your brass and your firearms beyond an acceptable level. I personally use magnums in everything, however I rarely load max charges. In fact the only thing I even come close to max in is my .30 carbine loads... __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!