Not cast bullets but purchased Rainier plated bullets. Maybe I'm asking a question I already know the answer to, but here goes. Somewhere I read that Rainier plated bullets shouldn't be driven higher than 1400fps. I have no idea if that's true or not but it stuck in my brain.
I bought 400 Rainier 180 grain .308 bullets for 300BLK. When I found out that Rainier shut it's doors that told me that I had 400 bullets for plinking. Somewhere I plucked a load that I knew would be safe just to put them downrange . No load development was put into it other than to make sure they cycled the AR handgun. They did and accuracy was fine, so I loaded all 400. The next time I shot them I put them past the chrono and got an eye opener... 2900+ fps. Just a hair over the 1400 fps suggested max' velocity. I never expected that velocity. But I can't imagine how it could be a false reading since it's a LabRadar. There's simply nothing that can throw it off, not like with a unit that uses skyscreens.
So here I am. I don't see leading in the bore after firing maybe a dozen rounds. But I have 400 of these and don't want problems. I can disassemble them or I can shoot them and disassemble them that way. Or am I concerned about nothing?
What would you do? ANY input is greatly appreciated. TIA
There are also RPMs to take into account but they don't appear to be flying apart within 50 yards and all holes look to be .30.