BJung
Member
What is your initial COL when you begin testing to find the best powder charge for your load combination? I have tended to start just off the lands. After I find the powder charge that fit the nodes, I'd make a second set of tests by seating depth.
A well known youtube contributor begins his loads just off Jam. He forces his bullet into the lands where the bolt can close, then he backs off the bullet from there. I'm afraid of excess pressure but that's what he claims is the best.
A fellow shooter years ago use to load his 7rm beyond max until his primers were flat, the primer pockets gave out, or his bolt was sticking. Then, he'd back out his load. I think his COL was .0015" of the lands.
What do you do?
A well known youtube contributor begins his loads just off Jam. He forces his bullet into the lands where the bolt can close, then he backs off the bullet from there. I'm afraid of excess pressure but that's what he claims is the best.
A fellow shooter years ago use to load his 7rm beyond max until his primers were flat, the primer pockets gave out, or his bolt was sticking. Then, he'd back out his load. I think his COL was .0015" of the lands.
What do you do?