Hello all,
I got my hands on a 458 Socom and now I've been inspecting possibilities with coated cast bullets. The bullets are fine,I use them with a Marlin 1895. Goes good.
After a couple of weeks with Hornady dies I switched to Redding. Hornady seater is excellent but it gets crowded with oversize boolits. I also got a better M-expander,groups got better and less leading. There still is some.
But I noticed a new leading issue,the brass is collecting lead now...? I see some lead around the case mouth after firing. This wasn't happening with Hornady dies. Pulled bullets look and measure good.
Here I cleaned 20 pcs of brass with brakekleen after shooting,then lube and resize/decap with Redding. After resizing I wipe brass with brakekleen again and that's when I find lead coming off the brass.
Attachment 227842.
When I used Hornady dies,even with only flaring,I never got this. Now even with a proper expander I find lead...?
Any ideas where this lead is coming from? My loads are medium pressure,brass gets a bit dirty. Is this an AR-thing? Why does this happen with Redding,not Hornady? This happens with both a Lee 405/458 and Applegate 480/4595. They shoot clean in a Marlin,quite a bit faster too. Hi-Tek coated.
First groups 100 meters are ok,soon leading takes over. Bullets do hit the feed ramp and reveal some lead but... I don't know.
Attachment 227845
Attachment 227846.
Thank you.