Been scouring the web for the last week trying to find some info and thought I would ask here.
Just getting into reloading and had a question about using SPM primers in 9mm.
My current work up is:
-Tula SPP
-124gr RN
-7.9gr AA#7
-OAL 1.150
-Heavy crimp (one fully turn on the lee factory crimp die)
-Mixed cases
My question is do Tula SPM burn hotter than SPP? Can't find a definite answer and keep reading that some manufacturers only differ the cup thickness, not burn.
The reason I ask is that I get flakes of un-burnt powder all over the inside of my pistol. I'm hoping a magnum primer will facilitate a more complete burn and a cleaner round. BUT, I also read that a magnum primer can cause the bullet to unseat prematurely and cause powder to exit the case before it has a chance to ignite (2 pressure peaks). This was my reasoning for putting a heavy crimp.
Thank you in advance for sharing your wisdom.
Just getting into reloading and had a question about using SPM primers in 9mm.
My current work up is:
-Tula SPP
-124gr RN
-7.9gr AA#7
-OAL 1.150
-Heavy crimp (one fully turn on the lee factory crimp die)
-Mixed cases
My question is do Tula SPM burn hotter than SPP? Can't find a definite answer and keep reading that some manufacturers only differ the cup thickness, not burn.
The reason I ask is that I get flakes of un-burnt powder all over the inside of my pistol. I'm hoping a magnum primer will facilitate a more complete burn and a cleaner round. BUT, I also read that a magnum primer can cause the bullet to unseat prematurely and cause powder to exit the case before it has a chance to ignite (2 pressure peaks). This was my reasoning for putting a heavy crimp.
Thank you in advance for sharing your wisdom.