How much differance between differant brands of primers

[340six]

I have some primers my dad gave me Federal large and small pistal as well as CCI Bought from Cabellas.

I normaly load in large batches 500-1000 and would use up the feds first but are odd amounts of primers so
Say I load the 9mm brass with 135fed and the rest of the 500 with cci....Would they all shoot the same or would the primers rate of ingniting the powder be so differant that cast 124tc's would not shoot the same?
Just thinking out loud here and want opinions.

[Lead Fred]

There is a thing called a primer burn chart.

It will tell you from hot to not which is which.

Without know which ones you have. brand name isnt enough to go on alone

[c3d4b2]

Here are some links that has some reference information. The general safety advise is to start with reduced loads and work upwards when changing components.


http://riflemansjournal.blogspot.com/2009/06/primers-small-rifle-primer-study.html

http://riflemansjournal.blogspot.com/2009/06/primers-large-rifle-primer-study.html


http://www.castingstuff.com/primer_testing_reference.htm

[MT Gianni]

A friend did an accuracy test with 5-7 different types of primers for one load and was surprised at the accuracy differences. They are all over the place but varied by brand and brisance for each gun he had. Only one or two would make a difference to a non-benchrest shooter but they vary.

[870TC]

I use to follow the recipe in the loading manuals to the "T". Whatever type primer they called for I went and bought. Then came the first and now the second, great primer shortage....now I use whatever the heck I can scrounge. I'm not a expert benchrest guy, and I avoid maximum loads and have seen no problems switching brands or even using a mag pistol primer where a standard is called for.

[jdgabbard]

In my personal experience with primers in handguns, I've found a primer is a primer is a primer is a primer... It doesn't matter, as long as it is a magnum for magnum and a standard for standard. Rifle primers probably differ, but not enough to worry me. Just remember to pattern each load so you know what you're working with before you get to the woods...