Primer seating depth

[.444 Marlin]

I know primers can decide whether the load works or not but what about primer depth in the pocket? Could that in any way mess with the accuracy of the load?

 

[vonb]

Determines whether you're trying to achieve benchrest accuracy. For my needs (tactical/hunting), I don't bother with checking this. However, if you think you need to check this, K&M makes a tool to check this:

http://www.precisionreloading.com/KMProducts.htm

 

[TiminTN]

There are tools to uniform the depth of the pocket. On a large rifle pimer pocket depth is in tolerance between .128" and .132".

 

[Whelen Man]

It can make a difference especially in random brass that has been fired before. Some primer pockets may be deeper than others resulting in uneven ignition from shot to shot.