Thread: Kimber Load Development

I figured I will post pictures of the brass for people's opinions.


The brass above is from the 7mm08 the scratches on the face occur pre firing the Lapua brass for some reason when loaded seems to cause the rough edge of the ejector slot to scrape brass. I confirmed this by loading and ejecting loaded brass and without fail unfired loaded ammo comes out like this. Primers are flatish but these federal primers are flat right from the get go in every rifle I own.

Having a closer look at the 280 AI brass
I couldn't get the swipe on photo until I managed to get the light just right and aligning the primer impact location so I knew where to look. By using HDR I managed to actually see way more than I could with my naked eye. It appears what I'm calling a wipe occurs much lower down in the powder charges and maybe isn't what I thought it was. I'd like some thoughts.









Thoughts any one it clearly a pressure sign but I think the sharp edge on the bolt face ejector slot is potentially exaggerating this sign. When the rifle arrived it did have a kind of thin coating of brass dust on the bolt face that just kind of wiped off. Will pull out brass that came with it and inspect. Photos show shinyness that is not visible to the human eye except on the last couple.