Thread: Primer question

Ah, almost right. CCI for example have the anvil petals sticking out. With RWS the anvil is flush with the bottom edge of the cup so you cannot preload them or push the anvil back in. With early Murom it was essential to drive the anvil in against the compound. If you didn't there was chances of erratic ignition or no bang at all. Don't know if Murom are still like that.
My practice for target ammo is to preload my BR4s by 1 1/2 thou and BR2s 2 thou preload. You cannot do that with normal priming tools. I currently use a Primal Rights tool. For sporting ammo I just seat by feel with a hand tool.

There is always the risk of overdoing it and crushing the primer material.

Before I started taking care priming I measured some of my early efforts done with an RCBS tool, carefully I thought. All primers were over seated and crushed.

One of the biggest priming issues, and I see the advise on the net, is to seat primers flush with the case base.